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GFI Kaspersky Anti-Virus Updates f/MailSecurity, 10-24M, 1Y, ENG

1. Get PublicFolder Identity GFI AntiSpam Folders Recurse ForEach Object Add PublicFolderclientPermission Identity Identity User USERNAME AccessRights owner Server SERVERNAME Change USERNAME and SERVERNAME to the relevant details of the Active Directory user in question Example Get PublicFolder Identity GFI AntiSpam Folders Recurse ForEach Object fAdd Publicrold erClientPermission Identity Identity User mesuser AccessRights owner Server exch07 Hiding user posts in GFI AntiSpam Folders For privacy and security purposes it is highly recommended that you hide user posts made on GFI AntiSpam folders This way users will only be able to post to the folders without viewing existing posts not even the ones they posted themselves To configure user privileges and hide posts for unauthorized users Microsoft Exchange 2003 1 From the Microsoft Exchange System Manager expand Folders gt Public Folders node Right click GFI AntiSpam Folders public folder and select Properties Select the Permissions tab and click Client permissions Click Add and select the user group to hide the posts from and click OK ou KR Ww N Select user group configured earlier to the client permissions list and set its role to Contributor Oo Ensure that only Create items is selected and the radio buttons a
2. Tracin g Options Tracing is a means of creating log files which are helpful for debugging purposes IV Tracing enabled Tracing logs folders C Program Files amp 86 GFI MailEssentials DebugLogs C Program Files amp 86 GFI MailEssentials Antispam debuglogs C Program Files amp 86 GFI MailEssentials Email Security DebugLogs C Program Files amp lt 86 GFI MailEssentials WwwConf DebugLogs m Clear tracing logs folders The contents of the folders to which tracing logs are written could grow to a substantial size on disk Click the button below to delete the tracing logs Clear Tracing Logs Screenshot 136 Configuring Tracing options 2 Select or unselect Tracing enabled to enable or disable logging respectively note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 3 Click Yes to restart the displayed services 4 Click OK Clear Tracing Logs To delete all Tracing logs GFI MailEssentials 12 Miscellaneous topics 234 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Tracing tab note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 2 Click Clear Tracing Logs and click Yes to restart the displayed services 3 Click OK when completed 12 5 POP2Exchange
3. ADDBLIST lt email gt Example ADDBLIST user somewhere com notes 1 Add an entire domain to the blocklist by specifying a wildcard before the domain Example ADDBLIST domain com 2 Wildcards cannot be used in domain names Example ADDBLIST domain com is invalid and will be rejected 3 For security reasons there can be only one ADDBLIST command in an email and only one address can be specified as the command parameter The parameter is either a user email or a domain Example ADDBLIST spammer spam com Or ADDBLIST spammers org Bayesian filter commands Add spam email or valid email ham to the Bayesian filter database Available commands are ADDASSPAM Instructs Bayesian filter to classify email as spam ADDASGOODMAIL Instructs Bayesian filter to classify email as HAM note These commands do not have parameters the content of the email is the parameter Remote command logging To keep track of changes made to the configuration database via remote commands each email with remote commands even if the email with remote commands was invalid is saved in lt GFI MailEssentials installation path gt GFI MailEssentials AntiSpam ADBRProcessed The file name of each email is formatted according to the following format lt sender email address gt SUCCESS lt timestamp gt eml in case of successful processing
4. notes 1 New rules can be added to mailboxes which already contain rules 2 Select multiple mailboxes to configure the same rule applicable to all mailboxes 2 In the Rule Condition text box type the tag given to the spam email in the GFI MailEssentials spam actions 3 Specify the Rule action Select Delete to delete an email which has a subject that contains the rule condition Select Move to to move spam email to a folder in the mailbox Key in the folder path where to save the spam email If you specify Inbox Spam then a spam folder will be created in the Inbox folder If you specify just Spam then the folder will be created at the top level same level as Inbox 4 Click Apply to save the set rules Managing multiple rules More than one rule can be set on the same mailbox Example Delete emails tagged with Phishing and move emails tagged with SPAM to Inbox Spam folder GFI MailEssentials 12 Miscellaneous topics 239 1 Double click on a mailbox to launch the Rules dialog 2 A list of rules applicable to the selected mailbox is displayed Click Add rule to add a new rule Select a rule and click Edit rule to change settings of the selected rule Select a rule and click Delete rule to delete the selected rule 3 Click Apply to save settings 12 6 2 Microsoft Exchange 2007 2010 To configure Microsoft Exchange 2007 2010 to forward tagged emails to the user s Junk E mail mailbox
5. Blocklist Personal Blocklist go View the users personalized blocklists M Enable personal email blocklist Personal Blocklist User Blocklisted Email Administrator test company com 7 Administrator knownspammer domain com Screenshot 60 Personal blocklist 2 Select Personal Blocklist tab and select or unselect Enable personal email blocklist to enable or disable personal blocklist feature 3 Click Apply Removing emails from users personal blocklist 1 Go to Anti Spam gt Email Blocklist and select Personal Blocklist tab 2 From the User drop down list select the user for whom to delete an email address 3 Select an email address from the list of email addresses Click Remove 4 Click Apply 7 1 5 IP DNS Blocklist IP DNS Blocklist checks the IP address of the sending mail server against a public list of mail servers known to send spam GFI MailEssentials supports a number of IP DNS Blocklists There are a number of third party IP DNS Blocklists available ranging from reliable lists that have clearly outlined procedures for getting on or off the IP DNS Blocklist to less reliable lists GFI MailEssentials maintains a cache with the results of queries to the IP DNS Blocklist to avoid querying the IP DNS Blocklists multiple times for the same IP addresses Items remain in the cache for 4 days and are cleared on GFI MailEssentials AS Scan Engine service restart This filter is enabled by default on i
6. Scanner Engine Version 6 8 6 Binary viruses signature version 06 08 0 Binary viruses signature date 2012 06 04 09 39 34 Binary viruses signature count 15413765 Macro viruses signature version 06 08 0 Macro viruses signature date 2012 04 18 18 30 56 Macro viruses signature count 20466 Engine licensing Engine Licensing Status Licensed Automatic Updates Licensing Status License expires 25 01 2013 Screenshot 38 Norman configuration 2 Select Enable Gateway Scanning SMTP check box to scan emails using this Virus Scanning Engine 3 Select whether to scan inbound and or outbound emails using this Virus Scanning Engine Scan inbound SMTP email Select this option to scan incoming emails Scan outbound SMTP email Select this option to scan outgoing emails 4 If you installed GFI MailEssentials on a Microsoft Exchange machine you will also have the option to scan internal emails and the Information Store Select Scan Internal and Information GFI MailEssentials 6 Email Security 80 Store Items note To use the Information Store Virus Scanning feature you must enable the option from Information Store Protection node For more information refer to Information Store Protection page 88 note In this page you can also review the antivirus engine licensing and version information 5 Select Enable Sandbox to use the Norman Antivirus Sandbox feature This executes email attachments i
7. note Permissions are not configurable for discussion lists 1 Right click the list to set permissions for and select Properties Mylist Properties xi General Database Footer Permissions Subscribers Bs Specify users allowed to send email to this newsletter Only users that are present on the list below are permitted to send email to this newsletter You can optionally set a password that permitted users will be required to use when sending email to the list Remove amp johndoe tcdomainb com Password required Screenshot 119 Setting permissions to the newsletter 2 From Permissions tab click Add Specify the users with permissions to submit an email to the list Email addresses are added to Email list GFI MailEssentials 10 Email Management 212 3 Enable passwords by selecting the Password required checkbox and providing a password For more information how to use this feature refer to the Securing newsletter with a password section below Securing newsletters with a password Set a password that secures access to newsletter in case someone else makes use of the email client or account details of a permitted user note Discussion lists cannot be secured with passwords 1 Right click the list to set permissions for and select Properties 2 From Permissions tab select Password required checkbox and provide a password LD IMPORTANT When sending emails to the newslet
8. Actions Select the actions to perform when an exploit is detected Quarantine email 1 Delete email Notification options Y Notify administrator Notify local user Logging options Log occurrence to this file C Program Files x86 GF MailEssentials EmailSecurity logs Ema Screenshot 30 Virus scanning engine actions 5 From Actions tab choose the action to take when an email is blocked Quarantine email Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You can subsequently review approve delete all the quarantined emails For more information refer to Quarantine page 180 Delete email Deletes infected emails Send a sanitized copy Choose whether to send a sanitized copy of the blocked email to the recipients of the original email to recipient s 6 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options option Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 7 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on di
9. In Exchange junk email folder Routes spam to users s default junk email folder Y note The In Exchange junk email folder option is not available when configuring the New Senders filter gt In Exchange mailbox sub folder Route all spam to a specific folder in the user s mailbox Type the folder where to move spam email Example 1 Type Suspected Spam for a custom folder to be created in the same level of the Inbox folder Example 2 Type Inbox Suspected Spam for a custom folder to be created in the Inbox folder Y NOTE This option requires that gt GFI MailEssentials is installed on the Microsoft Exchange Server machine If GFI MailEssentials is not installed on the Microsoft Exchange Server configure mail server to route emails or use the Rules Manager For more information refer to Moving spam email to user s mailbox folders page 238 The mail server is Microsoft Exchange Server 2003 or Microsoft Exchange Server 2007 2010 with the Mailbox Server Role present Y note For Microsoft Exchange 2010 a dedicated user is required to enable this option For more information refer to Move spam to Exchange 2010 folder page 240 Send to Send email identified as spam to a specific email address email Example Forward all spam to an email address checked by someone who checks email that might address have been wrongly marked as spam The subject of the email will be in the format recipient s
10. NS TE URI DNS list Name Status Priority multi surbl org Enabled 1 t Remove Selected Enable Selected Disable Selected Screenshot 62 URI DNS Blocklist 2 From the URI DNS Blocklist tab Check if mail message contains URIs Select this option to enable the URI DNS Blocklist filter with domains that are in these blocklists GFI MailEssentials 7 Anti Spam 114 CA f peseription OOO O Add URI DNS Blocklist If required add more URI DNS Blocklists to the ones already listed Key in the full name of the URI DNS Blocklist domain and click Add URI DNS Blocklist Order of preference The order of preference for enabled URI DNS Blocklists can be changed by selecting a blocklist and clicking on the Up or Down buttons Enable Selected Select a URI DNS Blocklist and click Enable Selected to enable it O NOTE It is recommended to disable all other URI DNS Blocklists when enabling multi surbl org as this might increase email processing time Disable Selected Select a URI DNS Blocklist and click Disable Selected to disable it Remove Selected Select a URI DNS Blocklist and click Remove Selected to remove it 3 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 4 Click Apply 7 1 7 Sender Policy Framework This filter uses SPF records to stop email sent from forged IP addresses by identify
11. http go gfi com pageid ME_DifferenceSMTPMIME 3 Optional You can also add a description to the entry in the Description field 4 Click Add Remove Select a blocklist entry and click Remove to delete Import Import a list of blocklist entries from a file in XML format LY NOTE A list of entries can be imported from a file in XML format in the same structure that GFI MailEssentials would export the list of entries Export Export the list of blocklist entries to a file in XML format Search Key in an entry to search for Matching entries are filtered in the list of blocklist entries 3 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 4 Click Apply Personal Blocklist The personal blocklist is an additional blocklist that compliments global blocklist Disabled by default the personal blocklist can be enabled for users to enable them to add specific email addresses to a personal blocklist that they can manage For management purposes administrators can also remove specific email addresses that the users have added to their personal blocklist note For detailed information on how users can add delete export and import personal whitelist and blocklist email addresses refer to Enabling Disabling Personal Blocklist 1 Go to Anti Spam gt Email Blocklist GFI MailEssentials 7 Anti Spam 111
12. 2 22 00 00 ccccee cece ec ccccececceecccceececceececeeeccees 233 Configuring Tracing Options 22 ccc e ec ece cece ee ccccceceecccccceeeeececcceceeececcceeees 234 The GFI MailEssentials POP3 downloader 2 22 2 0 2 0 e eee e cece eee eee e cece cece ee eeeeeeeeeeeees 235 Adding a POP3 mailbox s o eante rnanera aar e eee cece eee eee TEA cnn anna 236 Dial up Options 2 ss 5820 00 Sos o 237 Configuring when to pick up email eee ee ec ccc eee cence ee eee eeeeeeees 238 Configuring a master server 02 22 o ccc e eee cece eee cece ee eee eee e eee eee eeceeeeeeeneeeeees 244 Configuring a slave server 0 c cece cee ee cece A ee cece eee eee e eee nn n iaae aaae 245 Configuration Export Import Tool 0 0 22 o eee eee cece eee eee cece eee eeeeeeeeees 247 Exporting settings via command line 00 0 2 20 e eee e eee ee ee eee eee eeeees 250 Importing settings via command line 0 0 22 eco eee cece eee eee eee ee eeeeeeeees 251 The GFI MailEssentials Switchboard Troubleshooting 0 0000 ee cece eee eee eee ee 252 The GFI MailEssentials Switchboard Troubleshooting 00 2000000 e cece cece eee eee 253 Changing Remoting ports 0 000 ceo A ence E AAEE N aaae 255 Adding VSAPI performance monitor counters in Windows 2008 Server 22 2 257 Monitoring Virus Scan Files Scanned in Windows Server 2008 Performance Monitor 258 Active Directory sel
13. 8 3 1 Creating Advanced Content Filtering rules To create an Advanced Content Filtering rule follow the steps listed below Step 1 Configuring basic rule settings and conditions to block Step 2 Configuring the actions to take on detected emails Step 3 Specifying the users to whom to apply this rule Step 1 Configuring basic rule settings and conditions to block 1 Go to Content Filtering gt Advanced Content Filtering and click Add Rule GFI MailEssentials 8 Content Filtering 169 General Users Folders FS Advanced Content Filtering Rule name Please specify a friendly name for this rule New Advanced Checking Rule Condition Choose the condition for this rule Headers v Starts With v Email checking This rule can be applied to both inbound and outbound emails Select below Check inbound emails Check outbound emails Check internal emails Screenshot 91 Adding a new Advanced Content Filtering rule 2 In Rule Name area provide a name for the new rule 3 In Condition area provide the condition that the email has to meet to match this rule From the drop down select the email part Header Subject Body Attachment Name or Attachment Content and choose a condition Start with Ends with Contains Matches Exactly Matches Regex In the text box key in the keyword or regular expression that the email should match For example To match emails having swiss in subject Select Subject an
14. IP DNS Blocklist gt URI DNS Blocklist Greylist gt Language Detection Bayesian Analysis Whitelist New Senders Enable Content Filtering Enables Disables the following content filtering engines Keyword Filtering Attachment Filtering Decompression Engine Advanced Content Filtering 3 Click Apply GFI MailEssentials 11 General Settings 220 11 3 Proxy settings GFI MailEssentials automatically checks for and downloads updates for example virus definitions updates and SpamRazer definitions from the Internet If the server on which GFI MailEssentials is installed connects to the Internet through a proxy server configure the proxy server settings as follows 1 From GFI MailEssentials Configuration go to General Settings gt Settings and select Updates tab General Updates Q Automatic update checks Local Domains Proxy server settings Y Enable proxy server Proxy server Port 192 168 1 1 Proxy authentication settings Configure proxy authentication settings Y Enable proxy authentication Username Password For security reasons the length in the password box above does not necessarily reflect the true password length Screenshot 127 Updates server proxy settings 2 Select the Enable proxy server checkbox 3 In the Proxy server field key in the name or IP address of the proxy server 4 In the Port field key in th
15. Q OY Use this tab to configure user related settings for spam quarantine store access Users access quarantined emails using email reports sent at configurable intervals Search and management of quarantined emails by users is done through a web browser User Quarantine Reports A Send user quarantine reports at regular intervals Specify the days amp time when the report will be sent to users Send every Monday at 0 00 Adare Send every Weekday at 8 00 Dette Send every Weekday at 15 00 Specify which users will receive the spam quarantine report Specify the file to use for importing Screenshot 105 Spam Options User Settings tab 4 Select Send user quarantine reports at regular intervals to enable sending of User quarantine reports note User quarantine reports are emails sent to users on a regular basis with a list of blocked spam for that user Using this list users can check and approve any legitimate emails Email blocked by the Malware and Content Filtering filters are not shown in these emails 5 Configure the frequency at which report will be sent To add to the preset schedule select a date and time and click Add rule Select an existing date and time and click Delete to delete GFI MailEssentials 9 Quarantine 194 selected date time 6 Configure the users that will receive the Quarantined Spam reports Select All Users except the
16. 10 From Downloading option list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates and available for this engine download 11 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 12 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully GFI MailEssentials 6 Email Security 83 note An email notification is always sent when an update fails 13 To check for and download updates immediately click Download updates 14 Click Apply 6 1 5 McAfee 1 Go to Email Security gt Virus Scanning Engines gt McAfee General m McAfee AntiVirus Options Enable Gateway Scanning SMTP Scan Inbound SMTP Email Scan Outbound SMTP Email Scan Internal and Information Store Items Macro Checking 9 Do not check macros Block all documents containing macros Automatic Updates Licensing Status McAfee Version Information Ver
17. 2 Optional Add a Description 3 Click Add Remove IP Whitelist Select the IPs to remove and click Remove entries 6 Click Actions tab to enable disable logging of whitelist occurrences to a file Provide a path folder where to store the generated log file 7 Click Apply Personal Whitelist The personal whitelist is an additional whitelist that compliments global whitelist Disabled by default the personal whitelist can be enabled for users allowing them to add specific email addresses to a personal whitelist that they can manage For more information refer to Personal Whitelist and Blocklist page 62 For management purposes administrators can also remove specific email addresses that the users have added to their personal whitelist Enabling Disabling Personal Whitelists 1 Go to Anti Spam gt Whitelist Whitelist Auto Whitelist Keyword Whitelist Personal Whitelist IP Whitelist Actions C g View the users personalized whitelists Vv Enable personal email whitelist Personal Whitelist E User Whitelisted Email E Administrator John smith company com O Administrator support company com Screenshot 71 Personal whitelist GFI MailEssentials 7 Anti Spam 133 2 Select Personal Whitelist tab and select or unselect Enable personal email whitelist to enable or disable personal whitelist feature 3 Click Apply Removing emails from users personal whitelist 1 Go to Anti
18. 6 To log Greylist occurrences to a log file click Actions tab and select Log occurrence to this file note Log files may become very large GFI MailEssentials supports log rotation where new log files are created periodically or when the log file reaches a specific size To enable log file rotation navigate to Anti Spam gt Anti Spam Settings Select Anti spam logging tab check Enable log file rotation and specify the rotation condition 7 Click Apply 7 1 10 Header Checking The Header Checking filter analyses the email header to identify spam emails Configuring Header Checking 1 Go to Anti Spam gt Anti Spam Filters gt Header Checking GFI MailEssentials 7 Anti Spam 121 Gene FO a Specify which checks to perform on email headers Email and IP Addresses Check if the email header contains an empty MIME FROM field I Check if the email header contains a malformed MIME FROM field Maximum number of recipients allowed in email Check if the email headers contain different SMTP TO and MIME TO fields Verify if sender domain is valid performs DNS lookup on MIME FROM Maximum numbers allowed in the first part of the MIME FROM field eg joe31516u92domain com Check if email contains encoded IP addresses SMTP fields are specified by the SMTP server whereas MIME fields are specified by the client Content Related Check if email contains remote images only Mi
19. Configure reporting database For more information refer to Configuring reporting database page 58 Generate reports For more information refer to Generating a report page 53 Create custom reports For more information refer to Custom reports page 56 Search the reporting database For more information refer to Searching the reporting database page 57 4 2 1 Enabling Disabling reporting By default Reporting is enabled and email activity data is logged to a Microsoft Access database located in lt GFI MailEssentials installation path gt GFI MailEssentials data reports mdb Go to Reporting gt Settings node and check or uncheck Enable Reporting to enable or disable reporting respectively GFI MailEssentials 4 Monitoring status 52 4 2 2 Generating a report 1 From GFI MailEssentials configuration go to GFI MailEssentials gt Reporting gt Reports Report List Custom Reports Use this page to generate reports and select what data to show in the reports a Reports lists Select report to generate Emails Blocked View Report Preview Description Use this report to view statistics on blocked emails Reporting filtering Date filtering Last 30 Days hag Custom FROM date Custom TO date 15 07 2012 13 08 2012 Email direction filtering All email directions inbound outbound internal Email address filtering Reporting grouping G
20. F 5 7 Mime header vulnerability High alert 4 28 2006 12 56 39 PM T 6 ASX buffer overfiow High alert 8 31 2005 7 26 10 AM E 7 Document Open method Exploits Possible intrusion attempt 6 17 2008 7 24 38 AM E 8 Popup Object exploit High alert 4 28 2006 12 05 43 PM Y 9 Object CODEBASE file execution High alert 6 17 2008 7 24 38 AM E 10 Local file reading execution Suspicious 8 31 2005 7 35 51 AM al 11 Java security vulnerability High alert 6 17 2008 7 24 38 AM Status Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Enabled Screenshot 51 Email Exploit List 2 Select the check box of the exploit s to enable or disable 3 Click Enable Selected or Disable Selected accordingly 6 5 HTML Sanitizer The HTML Sanitizer scans and removes scripting code within the email body and attachments It scans the email body of emails that have the MIME type set to text html all attachments of type htm or html GFI MailEssentials 6 Email Security 97 6 5 1 Configuring the HTML Sanitizer 1 Go to Email Security gt HTML Sanitizer HTML Sanitizer Whitelist Domain IP Exclusions t a Configure HTML Sanitizer This filter removes all scripting code from the HTML of emails and attachments htm html only Content layout and formatting are not altered Emails are guaranteed to be received free of HTML Scr
21. GFI MailEssentials 8 Content Filtering 168 8 2 3 Removing attachment rules de Warning Deleted rules are not recoverable If in doubt it is recommended to disable a rule 1 Goto Content Filtering gt Attachment Filtering 2 From Attachment Filtering page select the rule s that you want to remove 3 Click Remove Selected 8 2 4 Modifying an existing rule 1 Goto Content Filtering gt Attachment Filtering 2 From Attachment Filtering page click the name of the rule to modify 3 Perform the required changes in the rule properties and click Apply 8 2 5 Changing the rule priority Attachment Filtering rules are applied in the same order from top to bottom as they are listed in the Attachment Filtering page that is rule with priority value 1 is checked first To change the sequence priority of rules 1 Go to Content Filtering gt Attachment Filtering 2 From the Attachment Filtering page click the up or down arrows to respectively increase or decrease the priority of the selected rule 3 Repeat step 2 until rules are placed in the desired sequence 8 3 Advanced Content Filtering Advanced Content filtering enables scanning of email header data and content using advanced configurable search conditions and regular expressions regex To configure advanced content rules go to Content Filtering gt Advanced Content Filtering This page allows you to view create enable disable or delete rules
22. GFI Product Manual GFI MailEssentials Administrator Guide ao U TT GFI The information and content in this document is provided for informational purposes only and is provided as is with no warranty of any kind either express or implied including but not limited to the implied warranties of merchantability fitness for a particular purpose and non infringement GFI Software is not liable for any damages including any consequential damages of any kind that may result from the use of this document The information is obtained from publicly available sources Though reasonable effort has been made to ensure the accuracy of the data provided GFI makes no claim promise or guarantee about the completeness accuracy recency or adequacy of information and is not responsible for misprints out of date information or errors GFI makes no warranty express or implied and assumes no legal liability or responsibility for the accuracy or completeness of any information contained in this document If you believe there are any factual errors in this document please contact us and we will review your concerns as soon as practical Windows Exchange IIS NET Internet Explorer Outlook SQL Server and Microsoft are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries All product and company names herein may be trademarks of their respective owners GFI MailEssentials is
23. Junk E mail folder 12 7 Move spam to Exchange 2010 folder When GFI MailEssentials is installed on a Microsoft Exchange 2010 server a dedicated user must be created for using the Deliver email to mailbox In Exchange mailbox sub folder anti spam action GFI MailEssentials 12 Miscellaneous topics 240 Configure the dedicated user from the GFI MailEssentials Switchboard note If a user is not configured spam cannot be moved to a mailbox sub folder To configure a dedicated user 1 Launch GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard 2 Select Move to Exchange tab note This tab is only shown when GFI MailEssentials is installed on Microsoft Exchange 2010 server 3 Click Specify user account to specify the dedicated user 4 Select one of the following options option Description O Move spam using an Let GFI MailEssentials automatically create a user with all the required rights automatically created user Move spam using the Use a manually created user Specify the credentials Domain username and Password of a following user account dedicated user and click Set access rights to assign the required rights to the specified user note The manually specified user credentials must be dedicated to this feature only Username password and other properties must not be changed from Microsoft Exchange or Active Directory else feature will n
24. Quarantine email 1 Delete email Notification options Y Notify administrator Notify local user Logging options iv A Y Log occurrence to this file C Program Files x85 1GFMiaiEssentialslEmailSecurityMogsWEmail Screenshot 42 Virus scanning engine actions GFI MailEssentials 6 Email Security 85 6 From Actions tab choose the action to take when an email is blocked Quarantine email Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You can subsequently review approve delete all the quarantined emails For more information refer to Quarantine page 180 Delete email Deletes infected emails Send a sanitized copy Choose whether to send a sanitized copy of the blocked email to the recipients of the original email to recipient s 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default
25. log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 86 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 43 Virus scanning engine updates 9 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 10 From Downloading option list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates
26. Configuring Nonexistent Recipients The Nonexistent Recipients filter requires access to the list of local addresses This is done either via Active Directory or if communication with Active Directory is not possible via an LDAP server 1 Navigate to Quarantine gt Quarantine Options gt Malware Options Quarantine Mode Nonexistent recipients Nonexistent recipients If enabled this feature automatically deletes emails with nonexistent recipients instead of quarantining them Use this feature to automatically keep your quarantine store clean form malicious spam email Delete quarantined emails for nonexistent recipients Lookup options Screenshot 107 Nonexistent Recipients 2 From Nonexistent Recipients tab select Enable Nonexistent Recipients protection checkbox 3 Select the user lookups method to use GFI MailEssentials 9 Quarantine 197 CA Use native Select this option if GFI MailEssentials is installed in Active Directory mode and has access to ALL users on Active Active Directory Skip to step 8 Directory lookups y NOTE When GFI MailEssentials is installed in Active Directory user mode on a DMZ the AD of a DMZ usually does not include all the network users email recipients In this case configure GFI MailEssentials to use LDAP lookups NOTE WhenGFI MailEssentials is behind a firewall this feature might not be able to connec
27. Download emails from POP3 server POP2Exchange downloads emails from a POP3 server processes them and sends them to the local mail server The recommendation for GFI MailEssentials is to if possible avoid using POP3 and to use SMTP since POP3 is designed for email clients and not for mail servers Notwithstanding this fact and to cater for situations where a static IP address required by SMTP is not available GFI MailEssentials can use POP3 to retrieve email 12 5 1 Configuring POP3 downloader 1 From the GFI MailEssentials server go to Start gt Programs gt GFI MailEssentials gt Email Management Tools 2 Select POP 2Exchange node and double click General POP2Exchange Configuration EE POP3 Dialup sy Configure downloading of emails from POP3 server MV Enable POP2Exchange POP3 Server Alternate address Add 156 25 36 4 bjones bjones mydomain c Remove Edit Check every 10 minutes Do not download mails larger than 3000 KBytes If mail is larger then Delete it Cancel Apply Screenshot 137 The GFI MailEssentials POP3 downloader 3 In the POP3 tab select Enable POP2Exchange to enable POP3 downloader GFI MailEssentials 12 Miscellaneous topics 235 4 Click Add to add a POP3 mailbox from which to download email Add POP3 Mailbox xi ba Specify POP3 download details POP3 Server I Login Password Delivery options Please provi
28. GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 5 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log Step 3 Specifying users to whom this rule applies 1 By default the rule is applied to all email users GFI MailEssentials however allows you to apply this rule to a custom list of email users specified in the Users Folders tab Q B Content Filtering Users Folders Please select users this rule will apply to Only this list O All except this list Screenshot 89 Content Filtering Users Folders Tab GFI MailEssentials 8 Content Filtering 167 2 Specify the users to apply this rule to Only this list Apply this rule to a custom list of email users groups or public folders All except this list Apply this rule to all email users except for the users groups or public folders specified in t
29. GFI MailEssentials uses 3 ways to retrieve users depending on the installation environment GFI MailEssentials 11 General Settings 222 note The number of users retrieved is also used for licensing purposes 11 5 1 GFI MailEssentials installed in Active Directory mode When GFI MailEssentials is not installed on the same machine as your mail server and Active Directory is present then GFI MailEssentials retrieves mail enabled users from the Active Directory domain of which the GFI MailEssentials machine forms part GFI MailEssentials installed on the Microsoft Exchange machine When GFI MailEssentials is installed on the same machine as Microsoft Exchange GFI MailEssentials retrieves the Active Directory users that have a mailbox on the same Microsoft Exchange Server 11 5 2 GFI MailEssentials installed in SMTP mode When you choose to install GFI MailEssentials in SMTP mode the list of local users is stored in a database managed by GFI MailEssentials To populate and manage the user list when GFI MailEssentials is installed in SMTP mode go to General gt Settings and select the User Manager tab The User Manager tab displays the list of local users and allows you to add or remove local users The list of local users is used when configuring user based rules such as Attachment Filtering rules and Content Filtering rules note GFI MailEssentials automatically populates the list of local users using the sender s
30. Mail Monitoring and select Properties Mail Monitoring b Mail Monitoring configuration V Enable Inbound Monitoring V Enable Outbound Monitoring Cancel Apply Screenshot 121 Enable or disable email monitoring 3 Enable disable all inbound and outbound email monitoring rules by checking unchecking Enable Inbound Monitoring and Enable Outbound Monitoring checkboxes 4 Click OK to save changes note Enable disable individual email monitoring rules by right click on the email monitoring rule and selecting Enable Disable GFI MailEssentials 10 Email Management 215 10 4 2 Configure email monitoring 1 Right click Email management gt Mail Monitoring node and select New gt Inbound Mail Monitoring Rule or Outbound Mail Monitoring Rule to monitor inbound or outbound email respectively Add Mail Monitoring Rule Ea QA Select user email address to copy monitored email to Copy monitored email to user email Address PO Select gt Cancel Screenshot 122 Add Mail Monitoring rule 2 Key in the destination email address mailbox to copy the emails to Click OK to continue New Inbound Mail Monitoring Rule Properties xi Mail Monitoring Exceptions LE Send copy of specific emails to another email address Copy monitored email to user email Address jsmith tedomainb com Select b If sender is Select and recipient is Select gt gt Add Remove Cancel Ap
31. New Database Settings Database type MS Access 9 SOL Server SOL server reporting Detected server Po Manually specified server User Pod Password Pod Get Database List Database L Screenshot 23 Configuring SQL Server Database backend 3 Select SQL Server 4 Select Detected server and select the automatically detected SQL Server from the list If the server is not detected select Manually specified server and key in the IP address or server name of the Microsoft SQL Server 5 Key in the credentials with permissions to read write to the database 6 Click Get Database List to extract the list of databases from the server 7 From the Database list select the database created for GFI MailEssentials Reporting GFI MailEssentials 4 Monitoring status 60 8 Click Apply Configuring database auto purging You can configure GFI MailEssentials to automatically delete auto purge records from the database that are older than a particular period To enable auto purging 1 Navigate to Reporting gt Settings and select Auto purge tab 2 Select Enable Auto Purging and specify how long items in database should be stored in months note Auto purging is applied only to the current database configured in the Reporting tab 3 Click Apply GFI MailEssentials 4 Monitoring status 61 5 User Actions GFI MailEssentials uses Active Directory grou
32. Quarantine gt Quarantine RSS Feeds Quarantine RSS Feeds a Use this page to configure GFI MailEssentials RSS Feeds CFI MailEssentials uses RSS Really Simple Syndication feeds to notify you on newly quarantined items To receive RSS Feeds use an RSS feed reader and subscribe to a feed Copy the URL of orange RSS button to the left of the Quarantine folder to monitor and create a new subscription in the RSS feed reader NOTE Only users with Access privileges are allowed to subscribe to the Quarantine RSS Feeds For a list of free RSS Feed Readers that are known to work well with GFI MailEssentials Quarantine RSS Feeds refer to http kbase gfi com showarticle asp id KBID002661 Y Enable Quarantine RSS Feeds If unselected no feeds are generated regardless of any individual filter settings RSS Feeds DIJE To subscribe to all enabled feeds copy the URL associated with the orange OPML button Edit Default quarantine folder RSS Feed Status Interval Maximum items LES Today Disabled 10 minutes 100 Edit LE Yesterday Disabled 10 minutes 100 Edit LES This Week Disabled 10 minutes 100 Edit LE All Items Disabled 10 minutes 100 Edit Custom quarantine folder RSS Feed Status Interval Maximum items EW delete after 2 days in quar Disabled 10 minutes 100 Edit Screenshot 103 Quarantine RSS feeds 2 Select the Enable Quarantine RSS Feeds checkbox 3 From the RSS Feeds are
33. Store Items note To use the Information Store Virus Scanning feature you must enable the option from Information Store Protection node For more information refer to Information Store Protection page 88 note In this page you can also review the antivirus engine licensing and version information Q Email Exploit Actions Actions Select the actions to perform when an exploit is detected Quarantine email 1 Delete email Notification options Y Notify administrator Notify local user Logging options v Log occurrence to this file C Program Files x86 GFMMailEssentials EmailSecurity logs Ema Screenshot 36 Virus scanning engine actions 5 From Actions tab choose the action to take when an email is blocked Quarantine email Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You can subsequently review approve delete all the quarantined emails For more information refer to Quarantine page 180 Delete email Deletes infected emails Send a sanitized copy Choose whether to send a sanitized copy of the blocked email to the recipients of the original email to recipient s 6 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options GFI MailEssentials 6 Email Security 77 Notify Notify the admini
34. To update an existing entry select the email address perform any required changes and click Update To delete an exiting entry select an entry and click Delete note You can also export and import lists Click Export to export the current list of Whitelisted or Blocklisted emails To import previously exported lists click Choose File select the exported file list and click Import 5 2 Quarantine Search The Quarantine Store is accessible from the GFI MailEssentials interface and allows management of quarantined emails When logged in as a user GFI MailEssentials provides the facility of searching and viewing through quarantined emails for the currently logged on user Users can then approve or delete emails in quarantine GFI MailEssentials 5 User Actions 64 5 2 1 Using the Quarantine Search 1 Logon GFI MailEssentials using a user Active Directory or user logon credentials GFI MailEssentials Sa memene User Console y Personal Whitelist Blocklist Quarantine Search y 3 View or modify your personal settings Personal Whitelist Blocklist Use the Personal Whitelist Blocklist to configure a personal list of allowed and blocked senders specific to your user account Quarantine Search Use the Quarantine Search to find quarantined emails that were originally addressed to your mailbox Screenshot 26 GFI MailEssentials logged on as a user 2 Select Quarantine Sea
35. ones listed below or Only users in the list below and provide the email address of the users to include or exclude note Click Browse to select a file with a list of email addresses to import and click Import 7 Click Apply 9 6 2 Malware Options GFI MailEssentials can also be configured to notify the administrator or authorized users via email Quarantine Action Form whenever an email is quarantined The Quarantine Approval Form contains details related to the quarantined email including the reason why it was blocked and any attachments that were included in the email The administrator can then action the quarantined email for example approve the email directly from the email client note To automatically purge emails older than a specific number of days create a new search folder and set the Auto purging feature to purge emails after a number of days For more information refer to Using the Search Folders node to auto purge quarantined emails page 187 Enabling Quarantine Approval Forms 1 Navigate to Quarantine gt Quarantine Options gt Malware Options GFI MailEssentials 9 Quarantine 195 Quarantine Mode Nonexistent recipients Quarantine mode Email options Select where the quarantine approval forms are sent These enable recipients to see the quarantine store and approve or discard quarantined email Send quarantine approval forms by email Select recipi
36. 2 0 0 ooo cece cece cee cece eee eee e rre 188 Screenshot 102 Quarantined Items details 00 0 c ccc cece cence eee ence ene e ence ence ence snes eneeenseenaees 189 Screenshot 103 Quarantine RSS feeds 2 2 0 cece ccc cece cence eee e ence eee n cence eee ea eens ensenseneenees 191 Screenshot 104 Spam Options General Options tab 0 0 0 ccc cece c cece eee e eee eee eeeeeneeeeeneeeees 193 Screenshot 105 Spam Options User Settings tab 2 2 2 0 00 20 occ cece cece eee eee cece ence cece enceeecceneeeeeees 194 Screenshot 106 Quarantine Mode 2 2 0 2 ccc cece cece cece ence cence nce e ence nee nc ence nse ee eee eeceeeenseneeneenees 196 Screenshot 107 Nonexistent Recipients 0 0 0000 0 c cece eee e ccc e cece cece cece cece eee c eee eeceeeeeeeeeaeeneees 197 Screenshot 108 Quarantine Store location and Public URL 22 0 0 cece cccce cece cece cccccececeeeeeeeees 199 Screenshot 109 Choose Disclaimer type 220 ccc cece cece e eee e nee cence een eeeeenceeeeneeeenneeeenanes 201 Screenshot 110 New Disclaimer general properties 1 2 0 0 000 000 ccc cece cece cece c cece eee eeeeeeeeeeeeeeees 202 Screenshot 111 HTML Disclaimer 0 0 2 0 0 0c eee cece eee cece eee eee eee ee eee bee e eee ence RR Eir kais 203 Screenshot 112 HTML disclaimer editor 2 2 0 2 occ cece cece eee e eee nce n cence nce c ences ensensensenseeaeeas 203 Screenshot 113 Plain text disclaimer 2 00 0 0 cc ccc cec
37. 9 Greylist The Greylist filter temporarily blocks incoming emails received from unknown senders Legitimate mail systems typically try to send the email after a few minutes spammers simply ignore such error messages If an email is received again after a predefined period Greylist will Store the details of the sender in a database so that when the sender sends another email the email will not be greylisted Receive the email and proceed with anti spam scanning Greylist is NOT enabled by default Y Important Notes 1 To enable Greylist GFI MailEssentials must be installed on the perimeter SMTP server For more information refer to http go gfi com pageid ME_GreylistSMTP Greylist contains exclusion lists so that specific email addresses domains and IP addresses are not greylisted Exclusions must be configured when Emails originating from particular email addresses domains or IP addresses cannot be delayed Emails addressed to a particular local user cannot be delayed Configuring Greylist 1 Goto Anti Spam gt Anti Spam Filters gt Greylist 2 From the General tab select unselect Enable Greylist to enable disable Greylist GFI MailEssentials 7 Anti Spam 119 General Email Exclusions IP Exclusions Actions Configure email addresses which Greylist would not process Email Addresses Select email address type gessessen From D To Specify email address Add Emails
38. ALLELLA LALLA aaa 219 11 2 Enabling Disabling scanning modules 2 0 0 2 20 ccc ccc ccccecceccecceccccceceeceesseseeseees 219 AS E AA a ntieatucn sant e a otek Meee a a aa tnt Sey a ee 221 Wd tres fa Eolea lola aT 1 0b TEE AE SE T ETSE EAEN 222 11 5 Managing local users 2 02 o oo cc ccc cc cnc ceccececcceceeceeceessenetneetetneeteteseeseesees 222 11 5 1 GFI MailEssentials installed in Active Directory mode 2 2 20 20 20 223 11 5 2 GFI MailEssentials installed in SMTP mode coccion 223 11 6 SMTP Virtual Server bindings 2 22 00 00 00 c cece cece ccc cncceccecceceeceecteseeseestesessenees 223 11 6 1 Binding GFI MailEssentials to another other SMTP Virtual Server 224 11 7 Version information nn T Saa 224 ARA 225 9 ACCESS Controlar road 3 tot mieten dt a mate 0 Ue aL a bot ta At a dl ta 225 12 Miscellaneous topics ccoo ccoo c cnc cnccncceccecceceeceeseeseecseseteessetetteeteeenes 227 12 1 Virtual directory NAMES ccoo coo cece cc cecceeeeeceeceteencetsecseeseeseeseeneeaes 227 12 2 User interface mode 0000 Lc ld IO e ree ey Se ee Een es 227 12 2 1 IIS Security Settings ooo coco ee nono cnc cines 229 A223 Failed eMallS cv 2 hase sce Ok ts ch te a 1 ee tush sa tA th aOR ES LE Cn aS tn eee ENS Sh nS 231 12 3 1 Reprocessing legitimate emails that fail 2 0 20 0 o oo cece ccc eee ec cece ccc ecceceees 232 12 3 2 Failed emails notifications ccoo coco eeeeeeees 232 PA 3 Monon te tok e
39. All Emails v o General Date Any date time v Search by sender Search by recipient Search for text in subject Screenshot 96 Malware and Spam Search Area 2 From the Quarantine page select All Emails from Search for dropdown 3 Specify the required search criteria SEARCH CRITERIA DESCRIPTION Date Select the date range when the email was quarantined Available date ranges are Any date time Since yesterday Last 7 days Last 30 days Custom date range Search by sender Specify a sender who sent the email that was quarantined Search by recipient Specify a recipient for whom an email was quarantined Search for text in subject Specify the text to search for within quarantined email subject 4 Click Search note Use the search results to review quarantined emails You can approve false positives for delivery to recipients For more information refer to Working with Quarantined emails page 187 Search for Malware and Content only 1 Go to GFI MailEssentials gt Quarantine GFI MailEssentials 9 Quarantine 181 Search for Malware and Content Only General Date Any date time Search by sender SS Search by recipient DoT Search for text in subject Malware and Content Quarantine Reason DoT Item Source Any Item Direction Any Quarantined By Any Screenshot 97 Malware and Spam Sear
40. Appendix 1 Bayesian Filtering page 265 The Bayesian Analysis filter is NOT enabled by default LD IMPORTANT Enable learning from outbound emails and allow at least a week for before enabling filter This is required because the Bayesian filter acquires its highest detection rate when it adapts to your email patterns Configuring the Bayesian filter Configuring the Bayesian filter requires 2 stages Stage 1 Training the Bayesian filter Stage 2 Enabling the Bayesian filter Stage 1 Training the Bayesian filter The Bayesian filter can be trained in two ways Method 1 Automatically through outbound emails GFI MailEssentials processes legitimate email ham by scanning outbound emails The Bayesian filter can be enabled after it has collected at least 500 outbound emails If you send out mainly English email or 1000 outbound mails If you send out non English email To do this 1 Go to Anti Spam gt Anti Spam Filters gt Bayesian Analysis 2 Select Automatically learn from outbound e mails 3 Click Apply Method 2 Manually through existing email Copying between 500 1000 mails from your sent items to the This is legitimate email sub folder in the GFI MailEssentials 7 Anti Spam 128 GFI Anti Spam Folders public folders trains the Bayesian filter in the same way as live outbound email sending note To use this option Public Folder Scanning must be enabled For more information refer to Public Folde
41. Configuring reporting database page 58 Generate reports For more information refer to Generating areport page 53 Create custom reports For more information refer to Custom reports page 56 Search the reporting database For more information refer to Searching the reporting database page 57 The GFI MailEssentials Dashboard provides real time information that enables you to monitor the product To access the Dashboard go to GFI MailEssentials gt Dashboard This includes gt gt gt gt gt gt Important statistical information about blocked emails For more information refer to Status and statistics page 46 Status of GFI MailEssentials services For more information refer to Services page 47 Graphical presentation of email activity For more information refer to Charts page 48 List of emails processed For more information refer to Email processing logs page 49 Status of software updates For more information refer to Antivirus and anti spam engine updates page 51 Log of POP2Exchange activities For more information refer to POP2Exchange activity page 52 GFI MailEssentials 4 Monitoring status 45 4 1 1 Status and statistics Dashboard Logs Updates POP2Exchange ee EA Use the Dashboard to see the GFI MailEssentials status and statistical information Y GFI MailEssentials Services Y Quarantine Statistics Y AVScan Engine Y ASScan Eng
42. Email list E Email No records to display Options Y Exclude email addresses and domains specified in Whitelist Screenshot 65 Email Exclusions 3 Select Email exclusions tab to specify any email addresses or domains that you do not want to greylist In the Edit Addresses area specify full email address or emails from an entire domain for example trusteddomain com or gt an entire domain suffix for example mil or edu Also specify if the exclusion applies to senders select From gt or to the local recipients select To gt Example 1 Do not greylist emails if the recipient is administrator mydomain com so that any emails sent to administrator mydomain com are never delayed Example 2 Do not greylist emails if the sender s domain is trusteddomain com trusteddomain com so that emails received from domain trusteddomain com are never delayed Click Add emails to add the exclusion GFI MailEssentials 7 Anti Spam 120 note To exclude whitelisted and auto whitelisted email addresses and domains from being greylisted and delayed select Exclude email addresses and domains specified in Whitelist 4 Select the IP exclusions tab to specify any IP addresses to exclude from being greylisted Click Add IPs and specify an IP to exclude 5 To exclude whitelisted IP addresses from being greylisted and delayed select Exclude IP addresses specified in Whitelist
43. Emails sent to the List server are converted to plain text emails only when the original format of the email is RTF Send email in HTML format to retain original format For more information how to use the List Server feature if GFI MailEssentials is installed on a gateway refer to http go gfi com pageid ME_ListServerGateway Email monitoring rules do not monitor emails sent from or to the GFI MailEssentials administrator and the email address to which the monitored emails are being sent to Email monitoring rules are also not applicable for emails sent between internal users of the same information store 13 Troubleshooting and support 263 13 5 GFI SkyNet GFI maintains a comprehensive knowledge base repository which includes answers to the most common problems GFI SkyNet always has the most up to date listing of technical support questions and patches In case that the information in this guide does not solve your problems next refer to GFI SkyNet by visiting http kb gfi com 13 6 Web Forum User to user technical support is available via the GFI web forum Access the web forum by visiting http forums gfi com 13 7 Request technical support If none of the resources listed above enable you to solve your issues contact the GFI Technical Support team by filling in an online support request form or by phone Online Fill out the support request form and follow the instructions on this page closely to submit your supp
44. GFI MailEssentials by running the GFI MailEssentials installation file and following the onscreen instructions For more information refer to Installation page 24 If GFI MailEssentials is installed on a machine where Active Directory is present one may encounter the dialog box below Select No I do not have Active Directory to install GFI MailEssentials in SMTP mode GFI MailEssentials 15 Appendix 2 Lotus Domino 269 fe GFI MailEssentials for Exchange SMTP InstallShield Wizard Active Directory Access to active directory users GF Does this server have access to all email users in Active Directory C Yes all email users are available on Active Directory Rules will be based on Active Directory users pe OI at ak asp eae 5 Active Directory DMZ Rules will be based on SMTP email addresses i An A ANA AA Screenshot 151 Active Directory selection 15 2 2 Set up DNS Router Firewall Configure the machine where GFI MailEssentials is installed to act as a gateway also known as Smart host or Mail relay server for all email Effectively all inbound email must pass through this machine before relayed to the mail server for distribution it is the first to receive all emails destined for your mail server The same applies for outbound emails mail server must relay all outgoing emails to the gateway machine for scanning before these are sent to external recipients via Internet i
45. GS gcse sa etn dc Sted ates ctl talent ten Sl oe ee ce Sa abe ao hi tan dawn ale Saini te Sista ect 180 9 1 Important Notes oo ana ie a a a iea iria ia ae Aa ea aiia 180 9 2 Searching the quarantine 22 2 20 cece ccc cc ccc ec ccc ceccccceceeccececasecetseteseseeseteeeee 180 A a MAA 185 9 3 1 Default Search Folders wesc ot a LT LE Ne 185 9 3 2 Creating editing and removing Custom Search Folders from Searches 187 9 3 3 Using the Search Folders node to auto purge quarantined emails 187 9 4 Working with Quarantined emails 2 0 2 00 20 ccc cece ccecccnccecceccececceeceeceeseessesesees 187 9 4 1 Viewing quarantined emails 2 2 2 2 0 ooo ccc ccc ccc cece cc ceccccceeceecetsenseteeeeeees 188 9 4 2 Approving Quarantined Emails 2 20 2 00 20 c cece ccc eccecccecccccececcecceecceseeseeseeees 189 9 4 3 Permanently Delete Quarantined Emails 0 00 0 0 occ cece ccc cccecceccecceceeess 190 9 5 Quarantine RSS Feeds nro 190 9 5 1 Enabling Quarantine RSS Feeds 200 2 0 coco ccc ccc enc cnccnccceccecceecceseesteseeaes 191 9 5 2 Subscribing to Quarantine RSS feeds 2 02 2 ccc ccc ccc cece ccc ceccecceceesecceees 192 9 5 3 Securing access to the GFI MailEssentials Quarantine RSS feeds ooo 192 9 6 Quarantine Options 2 20 2 eee n cence eee eee ee cence i a a a 192 9 6 1 Spam 8 6 6 pce 192 9 6 2 Malware Options 2 2 2 oo ccc cece cece cece ccc ceccceceece
46. Indicates that the service is started Click this icon to stop service Y Indicates that the service is stopped Click this icon to start a stopped service You can also start or stop services from the Microsoft Windows Services console To launch the Services console go to Start gt Run type services msc and click OK Quarantine Statistics Y Quarantine Statistics Quarantined Malware Emails 3617 Malware Quarantine Size 597 04 MB Quarantined Spam Emails 10010 Spam Quarantine Size 136 04 MB Free Disk Space 105 70 GB Screenshot 12 Quarantine statistics The Quarantine Statistics area displays the following statistical information Quarantined Malware Number of emails blocked by Email Security and Content Filtering engines and stored in the Emails Malware Quarantine Store Malware Quarantine Size on disk of the Malware Quarantine Store database Size Quarantined Spam Number of emails blocked by anti spam engines and stored in the Spam Quarantine Store Emails Spam Quarantine Size Size on disk of the Spam Quarantine Store database Free disk space Free space on the disk where quarantine stores are saved GFI MailEssentials 4 Monitoring status 47 Charts Y Email Statistics View charts for Last 7 Days y Email Scanning Timeline Scan Statistics 25000 15000 4 10000 5000 AEWI bZ APWI SZ AEM 92 IEN 22 A ACW 22 Ae JV O Processed 42376 Y O Leg
47. MailEssentials 7 Anti Spam 115 General IP Exceptions Email Exceptions Actions The Sender Policy Framework SPF fights spam by detecting emails with forged senders Block Level The Sender Policy Framework SPF filter identifies and blocks spam with forged senders It is recommended to run the SPF filter before Whitelist This can be configured in the Filter Priority node Disabled Enabled Recommended Blocks emails identified as having a forged sender if SPF check result is FAIL This denotes that the sender is definitely not authorized to use the sender domain For more information refer to http go gfi com pageid ME_SPFfilter Advanced Advanced SPF filter settings enables blocking of other SPF check results SOFT FAIL Neutral Unknown and NONE Enabling advanced filtering is only recommended for advanced users since it may trigger false positives For more information on SPF filters refer to http go gfi com pageid ME_SPFfilter J Enable Advanced SPF filtering 7 Block SOFT FAIL result Block SOFT FAIL Neutral Unknown and NONE results Screenshot 63 Enable and configure the Sender Policy Framework 2 Click Enabled to enable the Sender Policy Framework filter If the email sender IP address is definitely not authorized to send emails from the sender domain emails are blocked 3 Optionally select Enable Advanced SPF filtering and select one of the advanced option fr
48. Messaging Settings and select IMAP tab Messaging Settings Messaging Settings Domino Web Access IMAP Comments Basics Public and Other Users Folders Advanced Public and other users folders support Include all public and other users Enabled a folders when a folder list is requested Enabled 19 Public folder prefix Public folder database links Public Folders ol Other users folder prefix Other Users Other users domain delimiter r J IMAP users who can change other d sE users unread marks Screenshot 160 Include all public and other users folders when a folder list is requested 5 Select Public and Other Users Folders tab Right click and paste on the Public Folders Database Links and enable the Include all public and other users folders when a folder list is requested 6 Save and close the document GFI MailEssentials 15 Appendix 2 Lotus Domino 275 New Mail In Database X saveaClose Get Certificates X Cancel Mail In Database Basics Other Comments Administration Mail in name Public Folder Domain Acme y Description Public Folder Test Server LocalDomainServers Internet Address r public acme com File name r mailipublic nsf Internet message No Preference J storage Encrypt incoming mail No Screenshot 161 New mail in database 7 From the Lotus Notes Administrator configure the folder for mail
49. Profanities use the Keyword filtering option within the Content Filtering node Add Spam Keyword Check 1 Go to Anti Spam gt Anti Spam Filters gt Spam Keyword Checking GFI MailEssentials 7 Anti Spam 124 2 From the General tab select Block emails if content is found matching these conditions message body to enable Spam Keyword checking on email body GFI MailEssentials 7 Anti Spam 125 General ae Configure keyword filtering options for checking the content of the message body FP Block emails if content is found matching these conditions message body Condition entry Edit condition AND AND NOT OR NOT Add Condition Conditions list All these conditions are validated as a single condition using the OR operator for each entry Clicking on an entry will copy the condition text in the condition entry above for editing Current conditions Condition UCE Mail Act H R 3113 100 confidential 100 free 100 guaranteed 100 legal 100 money 100 nude 100 proven OLB O 8 O E O LO 100 risk free 1 2 345 6 7 8 9 10 Page 1 of 17 items 1 to 10 of 162 TE Specify the file to use for importing Note Import of list data cannot be performed unless the import list is on the server where GFI MailEssentials is installed Options Match whole words only Screenshot 68 Spam Keyword checking properties GFI MailEssentials 7 Anti Spa
50. Required dialog click Yes to restart services 5 Click OK 12 11 Remoting ports Remoting ports enable modules in GFI MailEssentials to communicate with each other By default GFI MailEssentials uses ports 8013 8015 8021 Ensure that no other applications except GFI MailEssentials are listening on these ports If these ports are used by some other application change these ports to allow GFI MailEssentials to use alternate ports To change the Remoting ports 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Other tab GFI MailEssentials 12 Miscellaneous topics 254 E GFI MailEssentials Switchboard ES Ul Mode Troubleshooting Tracing Quarantine Other 8 Configure other advanced options Remoting Ports Remoting ports enable the different GFI MailEssentials modules to communicate with each other Ports which are used by third parties will result in loss of functionality and conflicts Current Ports eo 3 Email Security Attendant eo 5 Email Security Auto updater 8021 Anti Spam Attendant Failed Mail Notifications This option sends notifications to the administrator s email address when emails fail to be scanned for Malware and Content Filtering MV Send Notifications on Failed Mail OK Cancel Apply Screenshot 148 Changing Remoting ports 2 In the Remoting Ports
51. SMTP Emails are relayed to the GFI MailEssentials server from other SMTP servers Click Detect servers receive emails to instruct GFI MailEssentials to automatically detect SMTP servers by retrieving MX directly from the Internet records of inbound domains Click Add SMTP Server to manually add the IPs of any other and forward them to this SMTP servers that relay emails to the GFI MailEssentials server server LY NOTE When manually adding IPs of perimeter SMTP servers you can also add a range of IP addresses using the CIDR notation Emails are also filtered by Select if using hosted email security products GFI MAX MailProtection or GFI MAX GFI MAX MailProtection or MailEdge GFI MAX MailEdge For more information refer to http go gfi com pageid ME_MAXMPME 3 Click Apply 7 6 Public Folder Scanning Spamming techniques are continuously evolving and consequently you might encounter instances when spam still makes it through anti spam filters to the recipient s Inbox Through public folder scanning users can manually classify email as spam and teach GFI MailEssentials spam patterns to classify similar email as spam Emails can also be added to the whitelist How it works 1 When an incorrectly classified email false positive or false negative is identified users drag and drop the email to the appropriate GFI AntiSpam public folder For more information refer to Using Public folder scanning page 153 2 Public fo
52. Spam gt Whitelist and select Personal Whitelist tab 2 From the User drop down list select the user for whom to delete an email address 3 Select an email address from the list of email addresses Click Remove 4 Click Apply 7 1 14 New Senders The New Senders filter identifies emails that have been received from senders to whom emails have never been sent before Such senders are identified by referencing the data collected in the Whitelist Only emails in which no spam is detected and where the sender is not present in any Whitelist are triggered by the New Senders filter This filter is NOT enabled by default W Important Enable at least one of the available Whitelists to use the New Senders function In the absence of the Whitelist functions should no spam be detected by the other filters received messages will be delivered to the recipient s Inbox ONLY emails in which no spam was detected and whose senders are not present in the Whitelist are delivered in the New Senders folder Configuring New Senders Filter 1 Go to Anti Spam gt New Senders General Exceptions Actions Configure New Senders The New Senders module automatically identifies emails which have been sent from senders to whom you have never sent emails These emails could be legitimate senders or else spam which were not detected by the GFI MailEssentials spam filters Options T Enable New Senders Not
53. Store Scanning in the background LD WARNING Background scanning causes all the contents of the Information Store to be scanned This can result in a high processing load on the Microsoft Exchange server depending on the amount of items stored in the Information Store It is recommended to enable this option only during periods of low server activity such as during the night 4 Select a VSAPI scan method Scan Description Method On New items in the Information Store are scanned as soon as they are accessed by the email client This access introduces a short delay before the email client displays the contents of a new message scanning Pro New items added to the Information Store are added to a queue for scanning This is the default and active recommended mode of operation since in general the delay associated with on access scanning is avoided scanning O NOTE In the event that an email client tries to access an item that is still in the queue it will be allocated a higher scanning priority so that it is scanned immediately GFI MailEssentials 6 Email Security 90 5 Click Apply 6 3 Trojan and Executable Scanner The Trojan and Executable Scanner analyzes and determines the function of executable files attached to emails This scanner can subsequently quarantine any executables that perform suspicious activities such as Trojans How does the Trojan amp Executable Scanner work GFI MailEssentials rates the
54. Store may contain malicious content Use this feature with caution 9 4 2 Approving Quarantined Emails GFI MailEssentials 9 Quarantine 189 There might be instances where you might want to approve an email blocked by GFI MailEssentials GFI MailEssentials allows the administrator to approve a quarantined email so that it is released from the Quarantine Store and delivered to its intended recipients To approve emails 1 Use the search features described in the previous sections to return a list of quarantined emails 2 Select the checkbox next to the quarantined email s to approve and click Approve Sanitize and Approve Emails GFI MailEssentials also enables you to remove the item that caused the email to be quarantined and send the email to recipient To sanitize and approve emails 1 Use the search features described in the previous sections to return a list of quarantined emails 2 Click on an email to view its details 3 Click Sanitize and Approve note Emails quarantined by the Information Store VSAPI source cannot be sanitized 9 4 3 Permanently Delete Quarantined Emails 1 Use the search features described in the previous sections to return a list of quarantined emails 2 Select the checkbox next to the quarantined email s and click Delete Delete Quarantined Emails and notify user The Delete and Notify feature enables notifying recipients when deleting emails from quarantine To delete and not
55. T lt sender email address gt FAILED lt timestamp gt eml in case of failure GFI MailEssentials 7 Anti Spam 147 note Timestamp is formatted as yyyymmddhhmmss 7 5 5 Perimeter SMTP Server Settings SMTP servers that relay emails to the GFI MailEssentials server must be specified 1 From the GFI MailEssentials Configuration go to Anti Spam gt Anti Spam Settings DNS Server Public Folder Scanning Remote Commands Anti spam logging Global Actions Perimeter SMTP Servers gh Specify which SMTP servers receive emails directly from the internet This is the only SMTP server which receives emails from the internet The following SMTP servers receive email directly from the internet and forward them to this server SMTP Server SMTP Server list Servel Description ecords of inbound domains GFI MAX F Emails are also filtered by GFI MAX MailProtection or GFI MAX MailEdge For more information refer to http kbase gfi com showarticle asp id KBID003180 Screenshot 82 Perimeter SMTP Server settings 2 From the Perimeter SMTP Servers tab configure This is the only SMTP Select this option when GFI MailEssentials is installed on the only SMTP server that server which receives receives external emails directly from the Internet emails from the Internet GFI MailEssentials 7 Anti Spam 148 CA f peseription OOOO The following
56. a new list further options can be configured which enable the customization of elements and behavior of the list These options include Creating a custom footer for the list Setting permissions to the list Securing newsletters with a password Manually adding subscribers to the list Importing subscribers to the list database structure Creating a custom footer for the list Configure a custom HTML or text footer A footer is added to each email sent to the list General Database Footer Permissions Subscribers D Configure the text and HTML footers for emails generated by this list HTML Footer List address Mylist tcdomainb com Subscribe Mylist subscribe tcdomainb com Unsubscribe Mylist unsubscribe tcdomainb com Edit HTML Text Footer List address Mylist tedomainb com Subscribe Mylist subscribe tcedomainb com Unsubscribe Mylist unsubscribe tcedomainb com Variable OK Cancel Apply Help Screenshot 118 List footer properties GFI MailEssentials 10 EmailManagement 211 1 Right click the list to add a footer to and select Properties 2 From Footer tab click Edit HTML to create an HTML footer O Tip Use footers to show how users can subscribe and unsubscribe from list Setting permissions to the list Specify who can submit an email to the list If list is not secured anyone can send emails to the entire list by sending an email to the list address
57. an email based social engineering technique aimed at having email users disclose personal details to spammers A phishing email is most likely crafted to resemble an official email originating from a reputable business for example a bank Phishing emails will usually contain instructions requiring users to reconfirm sensitive information such as online banking details or credit card information Phishing emails usually include a phishing Uniform Resource Identifier URI that the user is supposed to follow to key in some sensitive information on a phishing site The site pointed to by the phishing URI might be a replica of an official site but in reality it is controlled by whoever sent the phishing emails When the user enters the sensitive information on the phishing site the data is collected and used for example to withdraw money from bank accounts The Anti Phishing filter detects phishing emails by comparing URIs present in the email to a database of URIs known to be used in phishing attacks Phishing also looks for typical phishing keywords in the URIs The Anti Phishing filter is enabled by default on installation Configuring Anti Phishing note Disabling Anti Phishing is NOT recommended 1 Goto Anti Spam gt Anti Spam Filters gt Anti Phishing GFI MailEssentials 7 Anti Spam 105 m General Keywords Y _ Actions an Phishing URI Realtime Blocklist PURBL Configuration V Check URI s in mail messa
58. an engine or filter Action taken is as configured for that particular engine Deleted Email is blocked by an engine or filter with the action set to delete detected emails GFI MailEssentials 4 Monitoring status 49 Failed Email that could not be scanned by GFI MailEssentials Email is moved to one of the following folder lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity FailedMails lt GFI MailEssentials installation path gt GFI MailEssentials AntiSpam FailedMails For more information refer to Failed emails page 231 Filtering the email processing logs Y Filters Clear Filters Screenshot 15 Email processing logs filter Filtering the email processing logs simplifies the reviewing process by providing the possibility to find particular emails From the Filter area specify any of the following criteria Sender Specify the full or part of an email address to display only the emails sent by matching senders Recipient Specify the full or part of an email address to display only the emails sent to matching recipients Subject Specify the full or part of an email subject to display only the emails with a matching subject Scan result From the drop down list select whether to display only emails with a particular scan result for example quarantined emails only From amp To Specify a date and time range to display emails processed during that particular period note Click Clea
59. and available for this engine download 11 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 12 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully GFI MailEssentials 6 Email Security 87 note An email notification is always sent when an update fails 13 To check for and download updates immediately click Download updates 14 Click Apply 6 2 Information Store Protection When GFI MailEssentials is installed on the Microsoft Exchange server machine Information Store Protection allows you to use the Virus Scanning Engines to scan the Microsoft Exchange Information Store for viruses note When GFI MailEssentials is installed on a Microsoft Exchange Server 2007 2010 machine Information Store Protection is available only when both the Mailbox Server Role and Hub Transport Server Role are installed note Information Store Protection VSAPI is not supported on Microsoft Exchange Server 2013 because VSAPI was removed from Microsoft Exchange Server 2013 by Microsoft This section will show you how to enable Information Store Scanning and select the scan method used by VSAPI Virus Scanning API 6 2 1 Information Store Scanning 1 Go to Email Security gt Information Store Protection GFI
60. backup software scanning may cause GFI MailEssentials to malfunction This occurs when such software denies access to certain files required by GFI MailEssentials Disable third party antivirus and backup software from scanning the following folders 32 bit installations x86 64 bit installations x64 lt Program Files Common Files GFI gt lt Program Files x86 Common FilesiGFI gt lt GFI MailEssentials installation path gt GFl MailEssentials lt Inetpub mailroot gt if installed on a gateway machine GFI MailEssentials 3 Installation 26 32 bit installations x86 64 bit installations x64 lt Program Files Exchsrvr Mailroot gt if installed on the same machine as Microsoft Exchange 2003 lt Program Files Microsoft Exchange Server TransportRoles gt if installed on the same machine as Microsoft Exchange 2007 lt Program Files Microsoft Exchange Server V14 TransportRoles gt if installed on the same machine as Microsoft Exchange 2010 lt Program Files Microsoft Exchange Server V15 TransportRoles gt if installed on the same machine as Microsoft Exchange 2013 3 1 7 Firewall port settings Configure your firewall to allow the ports used by GFI MailEssentials CA f peseription 53 DNS Used by the following anti spam filters IP DNS Blocklist gt SpamRazer gt URI DNS Blocklist 20 amp 21 Used by GFI MailEssentials to connect to ftp gfi com and retrieve latest product ver
61. be created Select whether to let GFI MailEssentials automatically create the user or manually specify the credentials and click Set impersonation rights to assign the required rights to the specified user This user must be dedicated to this feature only and the credentials must not be changed For more information refer to http go0 gfi com pageid ME_ SpamExch2010 Click Next 7 When installing on Microsoft Exchange Server 2007 2010 the list of Microsoft Exchange server roles detected and GFI MailEssentials components required is displayed Click Next to install the required GFI MailEssentials components 8 Click Finish to finalize the installation GFI MailEssentials installation is now complete and the email protection system is up and running GFI MailEssentials 3 Installation 39 Next step Optimize your protection system to ensure that it is effectively up and running For more information refer to Post Install actions page 41 note To re run the Post Installation wizard from command prompt navigate to the GFI MailEssentials installation folder and run the following command e2kwiz exe clean 3 4 Upgrading a previous version GFI MailEssentials enables you to upgrade existing installations of GFI MailEssentials and or GFI MailSecurity The following restrictions on versions apply GFI MailEssentials Minimum version to upgrade from GFI MailEssentials 12 with all Service Releases installed GFI Ma
62. by priority page 138 13 Troubleshooting and support 262 Issue encountered Solution GFI MailEssentials returns the following error The file was blocked by the attachment filtering module at file type checking stage The attachment claimed to be a lt filetype 1 gt which is identified as being an attachment in category lt filetype 1 gt The file was detected to belong to the category lt filetype 2 gt Emails sent from whitelisted senders are blocked Spam not delivered to Microsoft Exchange sub folder or Spam is not being delivered to the designated sub folder in Outlook in a Microsoft Exchange Server 2010 environment 13 4 Email Management Cause An attached file is detected as being a file with multiple file types Solution For information how to resolve this issue refer to http go gfi com pageid ME_FiletypeError Y NOTE The solution to this issue requires changes in the Windows Registry It is important to follow the steps described in the solution with attention as incorrect configuration can cause serious system wide problems 1 Whitelisted emails can be blocked if they contain content or attachments that violate the Anti Malware rules since these have a higher order of priority than the whitelist Ensure that blocked emails do not violate Anti Malware rules 2 Ensure that the filter priories are set so that the whitelist is above any kind of filter that is catching the des
63. com janeroe tcdomainb com free 10 2 2012 gfisynch_258367 El 11 24 10 49 tcdomainb PM com GFISYNCH_25758360 tcdomainb com johndoe tcdomainb com janeroe tcdomainb com joox RE 100 tcdomainb com johndoe tcdomainb com GFISYNCH_257533600tcdomainb com free 10 2 2012 gfisynch_257583 11 24 06 60 tcdomainb PM com johndoe tcdomainb com GFISYNCH_25836749 tcdomainb com janeroe tcdomainb com joox RE 100 tcdomainb com johndoe tcdomainb com GFISYNCH_25758360 tcdomainb com free 10 2 2012 gfisynch_257583 E 11 24 06 60 tcdomainb PM com GFISYNCH_25758360 tcdomainb com johndoe tcdomainb com GFISYNCH_25836749 tcdomai RE 100 nb com janeroe tcdomainb com jbox tcdomainb com johndoe tcdomainb com free 10 2 2012 gfisynch_257583 E 11 24 06 60 tcdomainb PM com GFISYNCH_25758360 tcdomainb com GFISYNCH_25836749 tcdomainb com jbox tcdomainb c RE 100 om johndoe tcdomainb com johndoe tcdomainb com janeroe tcdomainb com free 10 2 2012 EJ 11 24 01 PM johndoe tcdo johndoe tcdomainb com janeroe tcdomainb com jobox tcdomainb com GFISYNCH_25758360 100 fr mainb com tcdomainb com GFISYNCH_25758360 tcdomainb com GFISYNCH_25836749 tcdomainb com ee mM 1234 5 mM Pagesize 10 45 items in 5 pages E Screenshot 28 Quarantine Search Results 5 Select one or more quarantined emails and click Approve to approve an email in mailbox and have it delivered to the currently logged on use
64. configuration 0 00 00 cece ccc cc cece cece eee cece ee eeeeeeeeeeeeeeeeeeeeeees 72 Virus scanning engine actions 2 2 22 ooo eee eee ccc ccc e cece cece cece eveceeeeeeeeeeeeees 73 Virus scanning engine updates 2 2 2 2 elec e cece cece cece aoaaa anaana 75 Kaspersky configuration 0 0000000000000 eee eee cece cece cece eee eeeeeeeceeeeeeeeeeeeeeeteeees 76 Virus scanning engine actions _ 0 0 20000 c cece eee cece cece aaa aoaaa a anaana 77 Virus scanning engine updates 220 0 eee e cece cece ee ceeeeeeeeeeeeeeeeeees 78 Norman configuration 2 2 2 0 0 2000 ececeeecccccc cece cece cece cece eeeeeeeeeeeeeeceeeeeeeseeees 80 Screenshot 39 Screenshot 40 Screenshot 41 Screenshot 42 Screenshot 43 Screenshot 44 Screenshot 45 Screenshot 46 Screenshot 47 Screenshot 48 Screenshot 49 Screenshot 50 Screenshot 51 Screenshot 52 Screenshot 53 Screenshot 54 Screenshot 55 Screenshot 56 Screenshot 57 Screenshot 58 Screenshot 59 Screenshot 60 Screenshot 61 Screenshot 62 Screenshot 63 Screenshot 64 Screenshot 65 Screenshot 66 Screenshot 67 Screenshot 68 Screenshot 69 Screenshot 70 Screenshot 71 Screenshot 72 Screenshot 73 Screenshot 74 Screenshot 75 Screenshot 76 Screenshot 77 Screenshot 78 Virus scanning engine actions 0 2 2 2 elec cece cece eee eee eee e eee c eee eeeeeeeeeeeeeneees 81 Virus scanning engine updates 2 0 2 2 eee ec eee eee
65. created For more information how to solve this issue refer to http go gfi com pageid ME_ReportDB Refer to http go sfi com pageid ME_esentutl for more information how to use esentutl exe to repair the Quarantine Store database This error occurs when emails are relayed from the IIS SMTP server to the Microsoft Exchange server This happens because Microsoft Exchange Server versions 4 0 5 0 and 5 5 are not able to handle 8 bit MIME messages For instructions how to turn off 8BITMIME in Windows Server 2003 refer to http go gfi com pageid ME_TurnOff8bitMIME Cause When GFI MailEssentials is not able to scan incoming emails these emails are not delivered to the recipient s since they may contain malicious content GFI MailEssentials moves these emails to the following folder lt GFI MailEssentials installation path gt GFl MailEssentials EmailSecurity failedmails Solution If any legitimate emails are moved to the failedmails folder these can be manually re processed for delivery For more information refer to Failed emails page 231 For more information of failed emails refer to http go gfi com pageid ME_FailedMails Information on licensing is available on http go gfi com pageid ME_ adminManualEN The online version of this manual is available from http go gfi com pageid GFI_Manuals 13 Troubleshooting and support 261 13 3 Scanning engines amp filters Issue encountered Solution Spam
66. digest 0 20 2 20 ecc ccc ecc eee eeee 140 7 5 Anti Spam settings occ cece cence cc cece cece cece cece cece eee e cece eeeeeceeeeeeeseees 142 ASA 143 7 5 2 Anti Spam Global Actions 2 00 00 00 20 ccc cece ccc cc ceccecceccccceceeceeseestesseseeeeseenes 143 7 5 3 DNS Server Settings 2 02 0 22 a a tp a EEEa 144 1294 Remote Commands iee sse Rl A O ts thal eto abet teats SIA 145 7 5 5 Perimeter SMTP Server Settings 2 2 2 000 220 c ccc cece cece cc cece cece cee ceeceeeeeeseeees 148 7 6 Public Folder Scanning 2 22 02 0 20 ccc ccc ceccccceccececcecceeceeeceseeeceteeteeteeeeeeseeseeees 149 7 6 1 Enabling Public Folder Scanning 2 0 c0cccccecceccecceccecceceeceeceeeeeeees 149 7 6 2 Using Public folder scanning 2 020 200 0220 cece cece ec cecceccecceceeeescetcetseeseeseese 153 8 Content Filtemngs se ssd A darn ea hs soteds of 156 8 1 Keyword Filtering 2220 o oo cence ccc nc ccc ceccccceceeceeceeceesetsseteeneenetteteseeeeene 156 8 1 1 Creating a Keyword Filtering rule 002 0 cc ccc eccccceccecceceeseesseaes 157 8 1 2 Enabling disabling Rules 22200 20 0 ce cece cnc cnccecceceeceeceeceesteseeseeaeens 162 8 1 3 Removing content filtering rules 0 0 0 c ccc cc cece cece ccc cecceccccceceeceeceeeceenes 162 8 1 4 Modifying an existing rule 0 c ccc ec cnc cccceccecceceeseeseeseeeeseenes 162 8 1 5 Changing rule priority 22 200 20 c ccc c cece cece ec
67. ed peed ceed Ge bee eects bes os ette 32 3 3 2 Running the installation wizard 2 2 2 0 20000000 c cece cece cece ccc c eee c cece eeeeeeeeeeeeeeeseeees 33 3 3 3 Post Installation Wizard 2 200 0020 cece ccc cece ccc cece e cece cece cece ee eeeeeeeeeeeeeeeeeeeeeeeees 36 3 4 Upgrading a previous version 2 e cece cece eee e cece cece eee ee cece cece eeeeeeeeeeeceeeeeeeeeeeees 40 3 4 1 Upgrade Procedure occ cece cece e cece eee cece cece cece eeeceeeeeeeeeceeseeeees 40 3 5 Post Install actions cnn 41 3 5 1 Add engines to the Windows DEP Exception List oocccccccccccccccccccccccccccccccnccccnnccccno 42 3 5 2 Test your installation oooooccoocccccccccccccccccccccccccccccnnnncccccccn nn nccccccnnnnccccccnnnnes 43 3 1 System requirements 3 1 1 Hardware requirements The minimum hardware requirements for GFI MailEssentials are 3 1 2 Processor Minimum 1Ghz Recommended 2GHz with multiple cores 3 1 3 Available Memory RAM Minimum 1 2GB Recommended 1 5GB 3 1 4 Free Disk Space Minimum 6GB Recommended 10GB GFI MailEssentials 3 Installation 24 note Hardware requirements depend on a range of factors including email volume and number of Anti Virus engines enabled in GFI MailEssentials The requirements specified above are required for GFI MailEssentials only 3 1 5 Software requirements Supported Operating Systems Windows Server 2003 Standard or Enterprise x86 or x64 i
68. exceeded allowed in the Auto the oldest and least used entries are automatically replaced by the new entries Whitelist NOTE Entering a value larger than the default value of 30 000 can negatively affect the performance of GFI MailEssentials 4 From the Keyword Whitelist tab specify keywords that flag emails as valid emails option Description Enable email body keyword whitelist Select this option to check for keywords in the email body which qualify an email as valid Add keywords to the Body Keywords list You can also import or export lists of keywords from to an XML file Enable email subject keyword Select this option to check for keywords in the email subject which qualify an whitelist email as valid Add keywords to the Subject Keywords list You can also import or export lists of keywords from to an XML file Match whole words only When selecting this option only whole words from the keyword whitelist are words phrases in subject body matched that qualify an email as valid GFI MailEssentials 7 Anti Spam 132 5 From the IP Whitelist tab configure Foption Description O Enable IP Whitelist Select to allow emails received from specific IP addresses to be whitelisted Add IP Whitelist entries 1 Specify Single computer CIDR Key in a single IP address or a range of IP addresses using CIDR notation Group of computers Specify the Subnet Address and Subnet Mask of the group of IPs to whitelist
69. file Alternatively specify the file name only including txt extension and the log file will be stored in the following default location lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt filename gt txt 10 Click Apply 9 7 Quarantine Store Location and Public URL Use the GFI MailEssentials Switchboard to configure the Quarantine Store location and the Quarantine Public URL GFI MailEssentials 9 Quarantine 198 The Quarantine Store location is the Quarantine Store location where quarantined emails are stored By default this is located in the GFI MailEssentials installation path This might however need to be moved to an alternate location in cases where for example you might be running out of disk space The Quarantine Public URL provides access to the Quarantine Page from an external location By default this is based on the GFI MailEssentials IIS Virtual directory settings you provided during installation This however might need to be changed if you are sending quarantine digest emails or notifications that are accessed outside of the internal network When this is the case the URL should be changed to be reached through Internet 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard N GFI MailEssentials Switchboard gt Configure Quarantine Store options M Quarantine Store location Th
70. for example your product names Entering too many keywords increases the possibility of emails not filtered by GFI MailEssentials and delivered to users mailboxes Whitelisting an internal user defeats the purpose of the Anti Spoofing filter For more information refer to Anti Spoofing page 117 Configuring Whitelist 1 Goto Anti Spam gt Whitelist GFI MailEssentials 7 Anti Spam 130 Whitelist Auto Whitelist Keyword Whitelist E Specify which email addresses will not be filtered for spam Y Enable email whitelist Email Address Domain SA AAA Email Type Cheat sender Description PT Search AN Email Description E afi com E cleverbridge com E Ofaxmaker com Es faxmaker com El gfi ch Es afi co uk El egfi com E egfi a E egfini El afinu Es afiap com 4 gficom at E ofihispana com El ofisoftware com E afisoftware de 2 2 Page 1 of 2 items 1 to 15 of 20 hor Specify the file to use for importing AAA A A Spam 131 Screenshot 70 Whitelist tab 2 From the Whitelist tab configure the email addresses and domains to whitelist Select Unselect Enable email whitelist to enable disable whitelist Perform the following actions Add a whitelist 1 In Email Address Domain provide the email address domain to whitelist For example entry ecompanysupport com or edu 2 In Email Type specify the email header f
71. for this virtual directory and click OK to add the virtual directory GFI MailEssentials 12 Miscellaneous topics 242 note Keep note of the configured path for reference d Select MESynchAgent virtual directory and from the Features View double click SSL Settings e Disable the Require SSL checkbox and click Apply f Return to the Features View of the newly added virtual directory and double click Authentication g Ensure that only Basic Authentication is enabled while the other options are disabled h Right click Basic Authentication and click Edit to specify the Default Domain and Realm of the username and password used for authentication by the slave machines Click OK and Apply i Return to the Features View of MESynchAgent virtual directory and double click BITS Uploads j Select Allow clients to upload files and select Use default settings from parent Click Apply IIS 6 0 a From Internet Information Services IIS Manager console right click on the default website and select New gt Virtual Directory b In the Virtual Directory Creation Wizard key in MESynchAgent as an alias for the virtual directory and click Next c Specify a path where to store the contents for this virtual directory and click Next note Keep note of the configured path for reference d Select Read and Write checkboxes and uncheck all other checkboxes Click Next and click Finish e Right click MESynchAgent virtual d
72. information Version 2012 Build 20120210 Check if newer build exists Screenshot 129 Version Information page To view the GFI MailEssentials version information navigate to General Settings gt Version Information The version information page displays the GFI MailEssentials installation version and build number To check whether you have the latest build of GFI MailEssentials installed on your machine click Check if newer build exists GFI MailEssentials 11 General Settings 224 note Always quote your GFI version and build information when contacting GFI support 11 8 Patch Checking The Patch Checking feature verifies if there are any software patches available for your version of GFI MailEssentials by directly connecting to the GFI Update Servers note It is highly recommended to check for patches periodically to keep GFI MailEssentials updated 1 Navigate to General Settings gt Product Patches Patch Checking Q Patch Checking Check for patches Screenshot 130 Checking for product patches 2 Click Check for patches to connect to the GFI Update Server and check for available updates 3 Click the Download link of patches to download 4 On completion install the downloaded updates note To access the installation instructions and other information applicable to a patch click the information link provided in the list of available updates An incorrect patch installati
73. reversible you cannot downgrade to the previous version you had installed LD IMPORTANT For information on how to upgrade to GFI MailEssentials from VIPRE Email Security for Exchange refer to http go gfi com pageid ME_VPXUpgrade 2 If you are currently on SMA and you want to upgrade access the GFI website customer area to upgrade your current license key note Evaluation is no longer accepted as a license key Access the GFI website customer area to upgrade your license key before starting the upgrade process 3 Download the appropriate GFI MailEssentials build for your type of machine Use GFI MailEssentials 32 bit x86 setup for 32 bit systems and the 64 bit x64 setup for 64 bit systems 4 Before running installation wizard ensure that You are logged on using an account with administrative privileges gt The machine where GFI MailEssentials is going to be installed meets the specified system requirements For more information refer to System requirements page 24 gt Configure your firewall to allow GFI MailEssentials to connect to GFI servers For more information refer to Firewall port settings page 27 gt Disable third party antivirus and backup software from scanning folders used by GFI MailEssentials For more information refer to Antivirus and backup software page 26 GFI MailEssentials 3 Installation 32 gt If installing GFI MailEssentials on an email gateway or relay perim
74. senders or recipients are excluded from SPF checking even if the messages are rejected Select Email Exception List checkbox add a new email address and description and click Add To remove entries select entries from the list and click Remove Selected To disable the Email exception list unselect Email Exception List checkbox An email address can be entered in any of the following three ways e localpart abuse matches abuse abc com abuse xyz com etc domain abc com matches john abc com jill abc com etc e complete joe abc com only matches joe abc com 5 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 6 Click Apply to save settings 7 1 8 Anti Spoofing Checks emails received with a sender email address claiming to originate from your own domain against a list of IP addresses by GFI MailEssentials If the sender IP address is not on the list of own domain server IP addresses email is blocked This filter is NOT enabled by default LD WARNING If enabling this feature do not whitelist internal users since this defeats Anti Spoofing check Enabling and configuring Anti Spoofing 1 Go to Anti Spam gt Anti Spam Filters gt Anti Spoofing GFI MailEssentials 7 Anti Spam 117 General A A Anti Spoofing Configuration Anti
75. that has a custom search query associated to it and displays all quarantined emails that match the search query Examples of search folders gt A search folder that displays only outbound emails quarantined by the Virus Scanning Engines gt A search folder that displays inbound emails quarantined in a particular date range and addressed to a particular user A search folder that displays emails that meet specific search criteria A search folder that displays the results of a previously defined search query To display emails in a particular search folder 1 Go to Quarantine node Default Search Folders Search Folder Name Malware and Content Spam Today 3 0 Yesterday 405 1326 This Week 408 1326 All Malware and Content Items 3617 N A All Spam Items N A 10010 Custom Search Folders Search Folder Name Malware and Content Spam Auto purging delete after 2 days in quar 3617 10010 Disabled Screenshot 99 Default and custom search folders 2 Click a search folder displayed in the Default Search Folders or Custom Search Folders areas Alternatively select one of the search folder nodes under the Quarantine and Quarantine gt Search Folders node note Use the search results to review quarantined emails You can approve false positives for delivery to recipients For more information refer to Working with Quarantined emails page 187 9 3 1 Default Search Folders Default Search Folders are preconfigured searc
76. the Information Store 1 Go to Email Security gt Information Store Protection 2 Select VSAPI Settings tab GFI MailEssentials 6 Email Security 89 Information Store Virus Scanning VSAPI Settings S Configures VSAPI Settings Microsoft Exchange Virus Scanning API VSAPI settings E Enable background scanning Enabling background scanning causes all Information Store contents to be scanned Exchange Server might become very busy during this process depending on the size of the Information Store It is therefore recommended to enable it during times of low server activty typically at night W On access scanning New items in the Information Store are scanned through VSAPI as they are accessed New email messages are therefore scanned as they are accessed by the email client This means that there might be a short delay before the email client displays the contents of a new message Pro active scanning When a new item is submitted to the Information Store it is immediately added to a scan queue If the new item is accessed while still in the scanning queue it is allocated a higher priority for scanning This is the recommended setting since it causes the Information Store to attempt scanning of an item on receipt doing away as much as possible with delays associated with on access scanning Screenshot 45 VSAPI Settings 3 Optional Select Enable background scanning to run Information
77. the list of available filters click Check corrupted archives 3 To enable this filter select Check corrupted archives 4 Specify what to do when an email contains an archive that triggers this filter Foption Description Quarantine Quarantines blocked emails Automatically Delete Deletes blocked emails note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 5 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients 6 Click the Actions tab to configure further actions 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt Engi
78. to do with spam emails page 135 note For more information about settings to verify after import refer to http go gfi com pageid ME_ChecklmportSettings 6 On completion click Exit 7 GFI MailEssentials automatically attempts to start the services that were stopped in step 1 LD IMPORTANT There may be other services that are stopped when stopping the IIS Admin service such as the Simple Mail Transfer Protocol SMTP service Restart these services manually from the Services applet 12 8 3 Export Import settings via command line Exporting settings via command line 1 Stop the following GFI MailEssentials services GFI MailEssentials AS Scan Engine gt GFI MailEssentials AS Attendant 2 From command prompt change directory to the GFI MailEssentials installation root folder 3 Key in meconfigmgr export c MailEssentials Settings verbose replac Where GFI MailEssentials 12 Miscellaneous topics 249 gt C MailEssentials Settings location where to export files Replace with the desired destination path gt verbose instructs the tool to display progress while copying the files gt replace instructs the tool to overwrite existing files in the destination folder En GFI MailEssentials Configuration Export Import Tool Copying C Program Files GFI MailEssentials config mdb gt C MailEssentials Jal ettings config mdb E C Program Files GFI MailEssential
79. to review the status and dates when scanning engines were last updated Click Update all engines to check for and download all updates The updates are checked for and downloaded as configured in the engines configuration pages Go to the configuration page of each engine and navigate to the Updates tab to configure update settings note Updates for each engine are checked for and downloaded sequentially one engine update at a time GFI MailEssentials 4 Monitoring status 51 4 1 4 POP2Exchange activity Dashboard F Logs POP2Exchange aj POP Downloader Logging Y POP2Exchange Logs 3 27 2012 1 50 21 PM gfipop2exch service started 3 27 2012 12 45 23 PM gfipop2exch service stopped 3 27 2012 12 33 16 PM gfipop2exch service started 3 27 2012 12 32 28 PM gfipop2exch service stopped 3 27 2012 11 45 01 AM gfipop2exch service started Screenshot 17 POP2Exchange log From GFI MailEssentials you can monitor the activity of POP2Exchange in real time Navigate to GFI MailEssentials gt Dashboard and select the POP2Exchange tab note For more information refer to POP2Exchange Download emails from POP3 server page 235 4 2 Reports GFI MailEssentials enables you to create reports based on data logged to database To access Reporting go to GFI MailEssentials gt Reporting Enabling reporting For more information refer to Enabling Disabling reporting page 52
80. to step 6 Click Next to continue 5 After the wizard connects to the source select the folder containing the list of legitimate emails e g the Sent items folder and click Next 6 Select how the wizard will access the source of spam emails Select gt Download latest Spam profile from GFI website Downloads a spam profile file that is regularly updated by collecting mail from leading spam archive sites An Internet connection is required Use Microsoft Outlook profile configured on this machine Retrieves spam from a Microsoft Outlook mail folder Microsoft Outlook must be running to use this option Connect to a Microsoft Exchange Server mailbox store Retrieves spam from a Microsoft Exchange mailbox Specify the logon credentials in the next screen Do not update Spam in the Bayesian Spam profile skip retrieval of spam emails Skip to step 8 Click Next to continue 7 After the wizard connects to the source select the folder containing the list of spam emails and click Next GFI MailEssentials 14 Appendix 1 Bayesian Filtering 267 8 Click Next to start retrieving the sources specified This process may take several minutes to complete 9 Click Finish to close the wizard Step 3 Import the Bayesian Spam profile When the wizard is not run on the GFI MailEssentials server import the Bayesian Spam Profile bsp file to GFI MailEssentials 1 Move the file to the Data folder in the GFI Mail
81. which is used to define whether the user is subscribed to the list or not 9 Customize your newly created list For more information refer to Configuring advanced newsletter discussion list properties page 211 10 3 2 Using Newsletters Discussions After creating a newsletter discussion list users must subscribe to be part of the list Subscribing to list Completing subscription process Sending a newsletter discussion post Unsubscribing from list GFI MailEssentials Ask users to send an email to lt newslettername gt subscribe yourdomain com On receiving the request list server sends a confirmation email back Users must confirm their subscription via a reply email to be added as a subscriber Y NOTE The confirmation email is a requirement and cannot be turned off Members with permissions to send email to the list are required to send the email to the newsletter list mailing address lt newslettername gt yourdomain com To unsubscribe from the list users must send an email to lt newslettername gt unsubscribe yourdomain com 10 Email Management 210 v To enable users to easily subscribe to newsletters add a web form asking for name and email address and automatically generate an email where the sender is the email address of the new user and the recipient is lt newslettername gt subscribe yourdomain com 10 3 3 Configuring advanced newsletter discussion list properties After creating
82. 01 7 1 1 SpamRaZer 2 22 2 ooo a cece ene eee eee ence eee e 102 TZ AREAS ANG dni Sones ou dav ette de ai do st adi tn cede 105 7 1 3 Directory Harvesting ooooocccccccccccoccccccccconc cono ncnccnn cnn ncnnnn cnn nnnnncnnnnnnncnnccns 107 TAA EmalliblockliSt terca to pompas ino ol cette Aree oe tte a ise ects e tt ome 110 TA PONS BCS ser is ct eee O a o lt eel id N 112 7 1 6 URI DNS Blocklist 114 7 1 7 Sender Policy Framework 2 0 2 20 22 cece cc ecccecceccecceccccceceeceeseeseeseeseeseeseeses 115 ARNO 117 SR A E A A NTE oe 119 7 1 10 Header Checking 2 0 20 occ c cece cc ccc ec ccc cecceccecececeneencenceeseteeeseeteseesees 121 7 1 11 Spam Keyword Checking 20 20 22 ccc cece cece ec ceccecceccccceceeseeseeseeceeseeteeeenes 124 7 1 12 Bayesian Analysis 0 0 2 00 00 2020 ccccec ccc cccceccecceceeceeceeceeseeaeeeeseeteenseteeeeeenes 128 AER WHITES tc este aoe a lectern AR 130 AMEN TES 134 7 2 Spam Actions What to do with spam emails oooocccccccccccccocccccnccnccnccnccnccnccnnoo 135 7 2 1 Configuring Spam Actions 20 2 o oo ccc ccc eccecceccccceceeceeseeseeseesseteeseenes 136 7 3 Sorting anti spam filters by priority 20 00 20 00 00 c ccc cc cece cece ccc ccccecceceecseceeseeseeees 138 TIA SPAM DISeSl once on cd run e ao del les No AAA O O Del 139 7 4 1 Configuring spam digests Administrator spam digest oooccccccccccccccccccnccnoo 139 7 4 2 Configuring spam digests Recipient spam
83. 010 server Microsoft NET Framework 4 ASP NET 4 0 GFI MailEssentials 3 Installation 25 Windows Authentication role and Static Content services Required when installing on Microsoft Windows Server 2008 2008R2 MSMQ Microsoft Messaging Queuing Service for more information how to install MSMQ refer to http g0 9fi com pageid ME_MSMQ note For more information on how to install pre requisites on Microsoft Windows Server 2008 refer to http go gfi com pageid ME_Win2008 For more information on how to install pre requisites on Microsoft Windows Server 2012 refer to http go gfi com pageid ME_Win2012 NOTE GFI MailEssentials Information Store Protection cannot be used if any other software is registered to make use of Microsoft Exchange VSAPI NOTE GFI MailEssentials can also be installed in virtual environments such as Microsoft Hyper V and VMWare virtualization software Microsoft Virtual Server cluster group resource with a physical disc cluster This is required ONLY for environments running Microsoft Exchange 2003 clusters For more information refer to Appendix 3 Microsoft Exchange 2003 Clusters page 278 note For more information on how to create a Resource Group for an Exchange Virtual Server in a Windows Server Cluster refer to http go gfi com pageid ME_ Clusterresourcegrouphowto 3 1 6 Antivirus and backup software Antivirus and
84. 12 ini i ismi i Sa administrator tcdomainb co jsmith tcdomainb com Test Subject Directory View licen 1 59 58 PM m ES Harvesting uarantined fA 3 27 2012 administrator tcdomainb co Q GH 1 43 50 PM jsmith tcdomainb com Threat test Leder View Item Filtering ane Quarantined A 3 27 2012 administrator tcdomainb co administrator tcdomainb co Threat test Keyword View Item 1 43 30 PM m m se Filtering aoe nan Quarantined A 3 27 2012 administrator tcdomainb co administrator tcdomainb co 3 Threat test Keyword View Item 1 43 08 PM m m Be O Filtering Sa 3 26 2012 ER A administrator tcdomainb co Tc03 Blocked View It 2 47 59 PM jsmith tcdomainb com m BitDefender iew Item Screenshot 14 Email processing logs From GFI MailEssentials Configuration you can monitor all processed emails in real time Navigate to GFI MailEssentials gt Dashboard and select the Logs tab to display the list of processed emails The following details are displayed for each email processed Date Time Sender Recipient s Subject Scan Result shows the action taken on the email OK Email is not blocked by GFI MailEssentials and is delivered to its intended recipients Quarantined Email is blocked by an engine or a filter that has the action set to Quarantine Click Quarantine to review the email Y NOTE The email cannot be previewed in quarantine if it was manually deleted from quarantine Blocked Email is blocked by
85. 2 2 0 cece eee ccccceececcccccecceececccceecececcccceeeeeeecceeeees 104 Anti Phishing Options 2 2 2 2 2 ccc eee e cece cece ee cccccceececcccccceeeccccceceeeececcceeeeeeeeceee 106 Directory Harvesting page 2 0 cece cece cece e cece cece cece ceeceeeeeeeeeeeeees 108 Email DloCKLISt a LO 110 Personal blocklist 00 2233 cose nuit a At T 112 IP DNS Block lists scizcecs lt O A Astin ch Sa IDE 113 URWDNS BlOCKlist taco Gcsindeh vers la 114 Enable and configure the Sender Policy Framework 2 ce cece cece cece ee eeeeees 116 GFI MailEssentials Anti Spoofing filter 0000 0c oc ccc c cece cece ce eee e cece eee eeeeees 118 Email Exclusions 00ccccecc cee cc cence cece cece ence cence eenaeeeeneeeeeseeeecneeeeneeeeees 120 Header checking options 0 0 0 e eee cece eee eee ccc e eee ence eee eee eeeeeeeeeeneeeeees 122 Language Detection 0 0 2 coco ccc ccc eee eee eee nn 124 Spam Keyword checking properties 0 0c cece cece cece cece ee eee cece ee ee eee cece eeeeeeees 126 Bayesian analysis properties 2 2 0 0 coo eee cece ee eee eceeeeeeeeneeeeees 129 Whitelisttab 62 ccccocscsli ida 132 Personal whitelist 2 0 0 0 0 0 ccc cece eccececec ees cccereccceecccececccececateeuccecsseversscserss 133 New Senders General tab 2 0000 00 ccc cece ccc cee ce cee ec eee ceceeeccteusecccecaterssssesescseesecs 134 New Senders Exceptions 0 0 cece cece cece cece ee eee cee eee
86. 28 99 119 Phishing 20 27 40 101 105 220 239 POP2Exchange 16 45 52 235 248 250 279 POP3 31 235 260 Post Installation 35 36 249 251 Index 287 Q Quarantine 19 35 39 44 47 62 64 70 74 77 82 86 91 95 136 160 166 171 175 180 190 192 198 220 226 228 261 R Remote commands 18 145 261 RSS Feeds 35 190 226 S Sender Policy Framework 20 102 115 262 SMTP Server 28 34 40 118 119 148 260 SMTP Virtual Server 29 35 223 Spam actions 135 247 251 SpamRazer 20 27 101 102 135 220 262 U Updates 27 45 51 68 71 75 78 83 87 93 96 102 106 129 221 225 246 260 Upgrade 40 URI DNS Blocklist 20 102 114 V VIPRE Email Security for Exchange 32 Virtual directory 17 35 150 227 228 242 W WebDAV 150 Whitelist 19 20 62 98 102 103 111 115 117 123 130 133 134 145 149 154 220 262 Wizard 29 32 36 41 115 130 210 222 243 266 GFI MailEssentials Index 288 USA CANADA AND CENTRAL AND SOUTH AMERICA 15300 Weston Parkway Suite 104 Cary NC 27513 USA Telephone 1 888 243 4329 Fax 1 919 379 3402 ussalesOgfi com ENGLAND AND IRELAND Magna House 18 32 London Road Staines Middlesex TW18 4BP UK Telephone 44 0 870 770 5370 Fax 44 0 870 770 5377 sales gfi com EUROPE MIDDLE EAST AND AFRICA GFI House San Andrea Street San Gwann SGN 1612 Malta Telephone 356 2205 2000 Fax 356 2138 2419 sales gfi com
87. 4 2 Content filtering engines 22 Lecce ccc cence cece ceeceeceeceeeeecteseeseeeeeneees 19 2 4 3 Anti spam filtering engines 20 00 02 e eee cece cece ccc eee cee cececcececseceeceees 19 2 4 4 Filters running at SMTP level 22 2 0 0c ccc c cece cceccecceceeceeceeeeteteeesees 20 2 4 5 Other Engines 2 20 occ cece ccc nc ence cc ccceccecceeceeeeeeeeeeceteeneeteeteeeseeseeeees 20 2 5 Typical deployment scenarios 0 00 o cece cece cece cece cece eee ccececeeceeeeseeeesesseseees 21 2 5 1 Installing directly on Microsoft Exchange server 2 20 2 0 20ceceececeeeecee cece 21 2 5 2 Installing on an email gateway or relay perimeter server _ 2 2 20 20002 21 AAA 24 3 1 System requirements oc ogee ces elas eceadee despues ddencceddarylgedetieeginess esseaseuzeeeteleneeses 24 3 1 1 Hardware requirements 2 22 22 0 2 ccc cc cece cece cece ccecceceeceeceeceeeeeseesseteseeseeees 24 EA A O 24 3 1 3 Available Memory RAM 2 22 2 2 2cceccecceccecceecceceeceeceeeeeseceeeceestesteseesseaes 24 3 1 4 Free Disk Space lt 2 ss kee ii ta 24 3 1 5 Software requirements coco coco e cece cece ec cccceecceceecetceeeeesteseeseeseesees 25 3 1 6 Antivirus and backup software 20 2 2 00 c ccc ccc cece cece ec cecccccececcceccesetssesesesees 26 3 1 7 Firewall port settings 2 00 00 eee cece cece cece eee ccece cee ceceeceseeseceeseeeees 27 3 2 Pre installation actions 2 0 20 00 0 c
88. 400 out of 3 000 spam emails and in 5 out of 300 legitimate emails then its spam probability would be 0 8889 i e 400 3000 5 300 400 3000 Creating a custom ham email database The analysis of ham email is performed on the company s email and therefore is tailored to that particular company GFI MailEssentials 14 Appendix 1 Bayesian Filtering 265 Example A financial institution might use the word mortgage many times and would get many false positives if using a general anti spam rule set On the other hand the Bayesian filter if tailored to your company through an initial training period takes note of the company s valid outbound email and recognizes mortgage as being frequently used in legitimate messages it will have a much better spam detection rate and a far lower false positive rate Creating the Bayesian spam database Besides ham email the Bayesian filter also relies on a spam data file This spam data file must include a large sample of known spam In addition it must also constantly be updated with the latest spam by the anti spam software This will ensure that the Bayesian filter is aware of the latest spam trends resulting in a high spam detection rate How is Bayesian filtering done Once the ham and spam databases have been created the word probabilities can be calculated and the filter is ready for use On arrival the new email is broken down into words and the most relevant words tho
89. AUSTRALIA AND NEW ZEALAND 83 King William Road Unley 5061 South Australia Telephone 61 8 8273 3000 Fax 61 8 8273 3099 sales gfiap com Fl
90. Essentials installation path 2 Restart the GFI MailEssentials AS Scan Engine and the GFI MailEssentials Legacy Attendant services GFI MailEssentials 14 Appendix 1 Bayesian Filtering 268 15 Appendix 2 Lotus Domino Use this Appendix for information on using GFI MailEssentials with your Lotus Domino installation 15 1 Lotus Domino incompatibilities 15 1 1 Internal memos emails are not scanned GFI MailEssentials does not scan internal memos emails sent by Lotus Domino since the Lotus Domino s sender receiver format is not in a compatible format When internal memos emails are passed into GFI MailEssentials these end up in the queue and are not processed note Do not pass internal memos emails through GFI MailEssentials 15 1 2 GFI MailEssentials List Server will not work with Lotus Domino Creating Newsletters or discussion lists will not work for the internal domain of Lotus Domino This option should not be used If used Lotus Domino users will not be able to send emails to the list 15 2 GFI MailEssentials Installation Guide for Lotus Domino Use the information in this section to install and configure Lotus Domino with GFI MailEssentials Install GFI MailEssentials on a separate machine then Lotus Domino as seen on the figure below gt GF MailEssentials li Lotus Domino Figure 4 GFI MailEssentials installation on a separate server than Lotus Domino 15 2 1 Installing GFI MailEssentials Install
91. Essentials scan engine analyzes the content of inbound outbound and internal emails using a number of engines and filters The result of the analysis identifies whether an email is to be blocked or allowed note When installing GFI MailEssentials on Microsoft Exchange server 2003 it scans the Microsoft Exchange information store If installed on a Microsoft Exchange Server 2007 2010 machine with Hub Transport and Mailbox Server Roles it will also analyze internal emails 2 1 2 GFI MailEssentials web interface Through the GFI MailEssentials web interface you can gt gt gt gt Monitor email scanning activity Manage scanning and filtering engines Review and process quarantined emails Generate reports 2 1 3 GFI MailEssentials Email Management console Configure and manage gt gt gt gt gt gt Auto replies Disclaimers Newsletters Discussion lists Mail Monitoring POP2Exchange 2 1 4 GFI MailEssentials Switchboard GFI MailEssentials 2 About GFI MailEssentials 16 Use the GFI MailEssentials Switchboard to configure gt How to launch the GFI MailEssentials user interface Set Virtual Directory names for the web interface and RSS Configure a number of other advanced options used for troubleshooting purposes Enable Disable email processing gt Enable Disable tracing Setting email backups before and after processing Setting Quarantin
92. GP encrypted emails note PGP encryption is a public key cryptosystem often used to encrypt emails Step 2 Configuring terms to block 1 Select the Body tab to specify the keywords in the email body to block 2 Select Block emails if content is found matching these conditions message body attachments checkbox to enable scanning of body for keywords GFI MailEssentials 8 Content Filtering 157 Condition entry Edit condition AND NOT v OR NOT Aaa Condon Conditions list All these conditions are validated as a single condition using the OR operator for each entry Clicking on an entry will copy the condition text in the condition entry above for editing Current conditions Condition No records to display Specify the file to use for importing A Note Import of list data cannot be performed unless the import list is on the server where GFI MailEssentials is installed Screenshot 83 Content Filtering Body Tab setting conditions 3 From the Condition entry area key in keywords to block in the Edit condition box You can also use conditions AND OR AND NOT and OR NOT to use a combinations of keywords 4 To add the keyword or combination of keywords keyed in click Add Condition To modify an entry in the Conditions list select it and make the required changes in the Condition entry box To remove an entry from the Conditions list select it and click Remove Click Upda
93. I Mode Troubleshooting Tracing Quarantine Other g Configure user interface options Configuration user interface mode Select the user interface mode you want to use Local mode Configure and manage GFI MailEssentials from this machine only IIS mode Configure and manage GFI MailEssentials remotely IIS user interface mode options Website name Defaut Web Site http WINSERVB 80 y Virtual directory MaiEssentials Security RSS Virtual directory MailEssentialsRSS IIS mode configuration URL http WINSERVE 80 MailEssentials Screenshot 132 GFI MailEssentials Switchboard Ul Mode 2 From the Ul mode area select Foption Description Local mode GFI MailEssentials loads in an html viewer application accessible from the machine where GFI MailEssentials is installed only note If using Local mode Spam digest links will not work User portal will not be available users will not be able to manage personal whitelists and blocklists and their personal quarantine For more information refer to User Actions page 62 IIS mode GFI MailEssentials loads in your default web browser using the IIS setup settings configured during recommended installation User interface is also accessible over the network via http O NOTE IIS setup settings can be altered using the Website name Virtual directory and RSS virtual Directory fields The Security options enable the config
94. Key in the IP DNS Blocklist domain and click Add IP DNS Blocklist Enable Selected Select an IP DNS Blocklist and click Enable Selected to enable it Disable Selected Select an IP DNS Blocklist and click Disable Selected to disable it Remove Selected Select an IP DNS Blocklist and click Remove Selected to remove it GFI MailEssentials 7 Anti Spam 113 3 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 4 Click Apply note To enable IP DNS Blocklist at SMTP Transmission Filtering level select Anti Spam gt Filter Priority gt SMTP Transmission Filtering tab and click Switch next to IP DNS Blockist to enable disable filtering at SMTP level or on receipt of full email 7 1 6 URI DNS Blocklist Stops emails that contain links to domains listed on public Spam URI Blocklists A Universal Resource Identifier URI is a standard means of addressing resources on the Web Realtime Blocklists RBL detect spam based on hyperlinks in the email known to be used by spammers This filter is enabled by default on installing GFI MailEssentials Configuring URI DNS Blocklist 1 Goto Anti Spam gt Anti Spam Filters gt URI DNS Blocklist General Actions O URI DNS Blocklist Configuration Y Check if mail messages contain URIs with domains that are in this blocklist URI DNS Domain
95. MailEssentials 6 Email Security 88 Information Store Virus Scanning VSAPI Settings GS Configures Information Store Virus Scanning JV Enable Information Store Virus Scanning If enabled Microsoft Exchange Information Store contents are scanned for viruses using the Microsoft Exchange Virus Scanning API VSAPI Only Virus Scanning Engines are used for Information Store Protection Information Store Virus Scanning Engines Status Engine Status License Priority Y VIPRE Anti Virus Enabled Licensed 1 amp BitDefender Anti Virus Enabled Licensed 2 WM Kaspersky Anti Virus Enabled Licensed 3 C Norman Anti Virus Enabled Licensed 4 McAfee Anti Virus Enabled Licensed 5 Screenshot 44 Information Store Protection node 2 From Information Store Virus Scanning tab select Enable Information Store Virus Scanning 3 Click Apply The status of the Virus Scanning Engines used to scan the Information Store is displayed in the table You can also disable a particular antivirus engine from Information Store Scanning Navigate to the Virus Scanning Engines page select the antivirus engine and disable Scan Internal and Information Store Items 6 2 2 VSAPI Settings The method used by GFI MailEssentials to access emails and attachments in the Microsoft Exchange Information Store is VSAPI Virus Scanning Application Programming Interface GFI MailEssentials allows you to specify the method to use when scanning
96. Move to folder on disk AA Send a sanitized copy of the original email to recipient s Notification options Y Notify administrator Y Notify local user Logging options F Log rule occurence to this file fe E Screenshot 88 Attachment Filtering Actions Tab 2 To block an email that matches the rule conditions select Block attachment and perform this action and select one of the following options Quarantine Stores blocked emails in the Quarantine Store You can subsequently review approve delete all the email quarantined emails For more information refer to Quarantine page 180 Delete Deletes blocked emails email Move to Moves the email to a folder on disk Key in the full folder path where to store blocked emails folder on disk LD IMPORTANT Actions always affect the whole email containing the blocked content even if there is other content such as attachments that do not trigger this rule GFI MailEssentials 8 Content Filtering 166 note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 3 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients but with the malicious content removed 4
97. S one on etic taaeaame teen mac iaiis cle Ach aa uum aes 8 O85 teed a swine Bo 18a Ae cm al ha oh Be 233 12 5 POP2Exchange Download emails from POP3 server 2 2 2 2cceccecceceeeceeeeeees 235 12 5 1 Configuring POP3 downloader 2 2 0 2 ccc c cece ccc cc ccc ceccecceccecceneeteetceveeteees 235 12 5 2 Configure dial up connection Options 22 20 0 cece cece ccc ecceccecceceecceceeseees 237 12 6 Moving spam email to user s mailbox folders 2 0 2 0 cece cece cece cece ceccccceceeseecee 238 12 6 1 Microsoft Exchange Server 2003 2 00 0 00 0 c ccc cccecceccecceccecceceecceseeseeeenees 238 12 6 2 Microsoft Exchange 2007 2010 2 002 o oo cece cece cccccccccnccccceceeceeseeseeeeaes 240 12 7 Move spam to Exchange 2010 folder 2 2 0 2 20 c occ cece cece ec ccccnccececcceceeceeseeseesees 240 12 8 Synchronizing configuration data 2 2 2 2 0 20 ccc ccc ccc cece ee cenccnccecceccecceseeeeeseeseeseeas 241 12 8 1 Anti spam synchronization agent 00 20 2002 ccc ccceccecceccccceccecceceeceeceeseess 241 12 8 2 Exporting and importing settings manually 0 0 02 2 0 220 c cece ccc ecc ccc eccecceceees 246 12 8 3 Export Import settings via command line 0 20 2 20 20 cece ee ecceccecceceeceeeees 249 12 9 Disabling email processing 20 2 0 occ e cece ence cecccececceececeeeceeseeeeeseesseseeneeaes 252 12 10 Email backup before and after processing 0 2 0 0 ccc c
98. See Post Office Protocol ver 3 Post Office Protocol ver 3 A client server protocol for storing emails so that clients can connect to the POP3 server at any time and read the email A mail client makes a TCP IP connection with the server and by exchanging a series of commands enable users to read the email Public folder A common folder that allows Microsoft Exchange user to share information Q Quarantine A email database where emails detected as spam and or malware are stored in a controlled enviornment Quarantined emails are not a threat to the network enviorment Quarantine Store A central repository within GFI MailSecurity where all blocked emails are retained until they are reviewed by an administrator R RBL See Realtime Blocklist Realtime Blocklist Online databases of spam IP addresses Incoming emails are compared to these lists to determine if they are originating from blocked users GFI MailEssentials 17 Glossary 284 Recursive archives Archives that contain multiple levels of sub archives that is archives within archives Also known as nested archives Remote commands Instructions that facilitate the possibility of executing tasks remotely RSS feeds A protocol used by websites to distribute content feeds that frequently changes for example news items with its subscribers Secure Sockets Layer A protocol to ensure an integral and secure communication between networks Simple Mail Transpo
99. The users to which a rule applies To configure attachment rules navigate to Content Filtering gt Attachment Filtering This page allows you to view create enable disable or delete rules Topics in this section 8 2 1 Creating an Attachment Filtering rule 00 0 2 2 o coe ce cece cece cece eee eeceeeeeeeeeees 163 8 2 2 Enabling disabling rules 0 0220000000 cece ccc cece cece cece c eee e cece e cece eeeeeeeeeeeeeeseeeeeeees 168 8 2 3 Removing attachment rules 2 00 00 e ee eee eee cece ee ceeeeeceeeeeeeeeeeeeees 169 8 2 4 Modifying an existing rule 2222 22 02 e eee e cece e oaao aa aaa aaaeaii 169 8 2 5 Changing the rule priority 00000000 c eee e eee eee eee ee eeeceeeceeeeeeeeeeeerees 169 8 2 1 Creating an Attachment Filtering rule To create an Attachment filtering rule follow the steps listed below Step 1 Configuring basic rule settings and the terms to block Step 2 Configuring the actions to take on detected emails Step 3 Specifying the users to whom to apply this rule Step 1 Configuring basic rule settings and the terms to block 1 Navigate to Content Filtering gt Attachment Filtering node 2 Click Add Rule GFI MailEssentials 8 Content Filtering 163 74 A Attachment Filtering Rule display name Rule name New Attachment Checking Rule Email checking Y Check inbound emails 4 Check outbound emails Y Check internal emails Attachment
100. a click Edit to the right of the quarantine search folder for which to enable RSS feeds GFI MailEssentials 9 Quarantine 191 4 Select Enable Quarantine RSS feeds on this folder checkbox 5 Specify the refresh interval in minutes in the Refresh feed content every text box The default value is 10 minutes 6 Specify the maximum number of items you want the feed to include in the Feed should contain at most text box The default value is 100 items note You can change the URL of an RSS feed by clicking Reset Feed URL To change the URL of all enabled RSS feeds click Edit to the right of the OPML entry and click Reset all the URLs When changing URL s ensure to update all present subscriptions accordingly Reset feed url should be done in case of unauthorized access 7 Click Apply 9 5 2 Subscribing to Quarantine RSS feeds Subscribing to all enabled Quarantine RSS feeds 1 Navigate to GFI MailEssentials gt Quarantine gt Quarantine RSS Feeds 2 In the RSS Feeds area right click on icon and click Copy Shortcut to copy the RSS feed URL 3 Use the copied URL in your RSS Feed Reader application to create a new RSS feed subscription Subscribing to a search folder Quarantine RSS feed To subscribe to an RSS feed of a default or custom search folder 1 Navigate to GFI MailEssentials gt Quarantine gt Quarantine RSS Feeds 2 In the RSS Feeds area right click on LEX icon next to the search folder to subscri
101. ab choose the action to take when an email is blocked GFI MailEssentials 6 Email Security 73 Quarantine email Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You can subsequently review approve delete all the quarantined emails For more information refer to Quarantine page 180 Delete email Deletes infected emails Send a sanitized copy Choose whether to send a sanitized copy of the blocked email to the recipients of the original email to recipient s 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 74 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automat
102. able to block outbound emails but instead replaces the blocked content with a threat report 6 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients 7 Click the Actions tab to configure further actions 8 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 9 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log 10 Click Apply Scan within archives You can configure GFI MailEssentials to apply Keyword and Attachment Filtering of files within archives 1 Navigate to Content Filtering gt Decompression node 2 From the list of available filters click Scan within archives 3 To enable scanning within archives select Apply Attachment and Content Filtering rules within archives For more information re
103. aceUserPermissionOnPFRecursive psl Server server TopPublicFolder GFI AntiSpam Folders User Default Permissions Contributor Replace server with the full computer name This command will set the default permissions for the GFI MailEssentials Public Folders to contributor where users can move emails to the Public Folders but cannot view or modify entries By default administrators are owners of the Public Folders and can view or modify entries For more information about Public Folders permissions refer to http go gfi com pageid ME_PFPermissionsExch2010 7 6 2 Using Public folder scanning Reviewing spam email 1 When spam emails are delivered to the user s mailbox in Inbox Junk E mail folder or a custom folder instruct the individual email users to periodically review spam emails 2 There may be cases where legitimate emails are incorrectly identified as spam false positives For more information refer to Managing legitimate email page 154 3 There may also be cases where spam emails are not detected false negatives For more information refer to Managing spam page 154 GFI MailEssentials 7 Anti Spam 153 Managing legitimate email As with any anti spam solution GFI MailEssentials might require some time until the optimal anti spam filtering conditions are achieved In cases where this is not yet achieved there might be instances where legitimate email is identified as spam In such c
104. ail Exploit Engine Email checking V Scan Inbound SMTP Email J Scan Outbound SMTP Email Screenshot 48 Email Exploit configuration 2 From the General tab select whether to scan inbound and or outbound emails CA Check inbound emails Select this option to scan incoming emails Check outbound emails Select this option to scan outgoing emails GFI MailEssentials 6 Email Security 94 Q Email Exploit Actions Actions Select the actions to perform when an exploit is detected 9 Quarantine email 1 Delete email Notification options Y Notify administrator Notify local user Logging options Y Log occurrence to this file C Program Files x35 1GFMailEssentialslEmailSecurityllogs Email Screenshot 49 Virus Scanning Engine Configuration page Actions Tab 3 From Actions tab choose the action to take when an email is blocked Quarantine Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You item can subsequently review approve delete all the quarantined emails For more information refer to Working with Quarantined emails page 187 Delete Deletes infected emails item 4 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whe
105. ail is not blocked by any scanning or filtering engine it is sent to the user s mailbox 2 3 Outbound mail filtering Outbound mail filtering is the process through which emails sent by internal users are processed before sending them out over the Internet 3 GFI MailEssentials When sending an outbound email this is routed to GFI MailEssentials and processed as follows 1 The email is scanned by the malware and content filtering engines Any email that is detected as containing malware is processed according to the actions configured If an email is considered as safe it then goes to the next stage 2 Remote commands check and execute any remote commands in email if any are found If none are found email goes to the next stage 3 If configured the applicable disclaimer is next added to the email GFI MailEssentials 2 About GFI MailEssentials 18 4 If configured email monitoring is next executed and the appropriate actions taken 5 If enabled Auto Whitelist adds the recipients email addresses to the auto whitelist This automatically enables replies from such recipients to go to the sender without being checked for spam 6 Email is sent to the recipient 2 4 Email scanning and filtering engines GFI MailEssentials contains a number of scanning and filtering engines to prevent malicious emails spam and other unwanted emails from reaching domain users 2 4 1 Malicious emails scanning 2 22 0 c eee e e
106. all the names that contain the specified characters For example if you input sco GFI MailEssentials will return names such as Scott Adams and Freeman Prescott if they are available 5 Select the check box next to the name s that you want to add to the list and click OK note To remove entries from the list select the user user group public folder you want to remove and click Remove 6 Repeat steps 3 to 5 to add all the required users to the list 7 Click Apply 8 3 2 Removing Rules 1 From Content Filtering gt Advanced Content Filtering select rule to remove 2 Click Remove Selected 8 3 3 Enabling Disabling Rules GFI MailEssentials 8 Content Filtering 173 1 From Content Filtering gt Advanced Content Filtering select rule to enable disable 2 Click Disable Selected to disable rule or Enable Selected to enable 8 3 4 Sorting Rules Advanced Content Filtering rules are applied in the same order from top to bottom as they are listed in the Advanced Content Filtering page that is rule with priority value 1 is checked first To change the sequence priority of rules 1 Navigate to the Content Filtering gt Advanced Content Filtering node 2 Click the up or down arrows to respectively increase or decrease the priority of the rule 3 Repeat step 2 until rules are placed in the desired sequence 8 4 Decompression Engine The Decompression engine extracts and analyzes archives compress
107. als installation path gt GFI MailEssentials and launch meconfigmgr exe note Duration of the import process depends on size of the databases to be imported 4 Click Import choose folder containing import data and click OK LD WARNING The import process replaces the configuration files with the files found in this folder GFI MailEssentials 12 Miscellaneous topics 248 note Some imported settings may not be appropriate for the installation of GFI MailEssentials may need to be re configured This is possible for example DNS settings domains list and perimeter servers are different from the server from which settings were exported Click Yes to launch the GFI MailEssentials Post Installation wizard to reconfigure important settings For more information refer to Post Installation Wizard page 36 It is also recommended to verify the following settings that are not configured during the Post Installation wizard Directory Harvesting This must be verified when importing to a server that connects to a different Active Directory or with an Active Directory which is located on a different server For more information refer to Directory Harvesting page 107 Spam Actions Some spam actions are only available for Microsoft Exchange environments If importing settings to a different environment for example on an IIS Server actions will not work For more information refer to Spam Actions What
108. aluation or when registering your copy of GFI MailEssentials For Exchange SMTP License Key M InstallShield lt Back GFI MailEssentials 3 Installation 33 Screenshot 1 Specifying administrator s email address and license key 6 Key in the administrator s email address in the Administrator Email and enter License Key Click Next note Evaluation is no longer accepted as a license key Access the GFI website customer area to upgrade your license key before starting the upgrade process 7 Select the mode that GFI MailEssentials will use to retrieve the list of email users Yes all email users are Active Directory mode available on Active Directory GFI MailEssentials will retrieve the list of users from Active Directory Selecting this Rules will be based on Active option means that GFI MailEssentials is being installed behind your firewall and that it Directory users has access to the Active Directory containing ALL your email users No do not have SMTP mode Active Directory or my Select this mode if you are installing GFI MailEssentials on a machine that does not network does not have access have access to the Active Directory containing the complete list of all your email to Active Directory DMZ users This includes machines on a DMZ or machines that are not part of the Active Directory domain In this mode GFI MailEssentials automatically populates the list of local users using the sen
109. alue SharedNamespac Public Folders Public Folder FolderDelimiter GFI MailEssentials the registry select HKEY LOCAL _ DERS 5 and create the following Key 15 Appendix 2 Lotus Domino 277 16 Appendix 3 Microsoft Exchange 2003 Clusters Use this appendix for instructions on how to install and uninstall GFI MailEssentials on Microsoft Exchange 2003 clusters A cluster is a group of servers technically known as nodes working collectively as a single server Such environment provides high availability and fail over mechanisms to ensure constant availability of resources and applications including email infrastructures If one of the nodes in the cluster fails is not available resources and applications switch to another cluster node note GFI MailEssentials can only be installed in an Active Passive cluster environment In an active passive cluster a failover mechanism ensures that whenever an active cluster fails one of the available passive nodes becomes active i e takes over the role of the failed node 16 1 Installing GFI MailEssentials in a cluster environment To install GFI MailEssentials on a Microsoft Exchange Server 2000 2003 cluster ensure that gt gt gt gt gt gt Any running applications are closed Microsoft Exchange Server 2000 2003 is installed in clustered mode An Exchange Virtual Server cluster group resource exists and includes amon
110. an the following size Block all except this Block all attachments except the ones specified in the list Key in a filename and or list attachment type to allow in the Enter filename with optional wildcards text box and click Add Repeat this step for all filenames and or attachment types to exclude note When specifying filenames and or attachment types you can use asterisk wildcards For example specifying orders mdb refers to all files of type mdb that contain the string orders in the file name Specifying j pg will block all images of type jpg note To remove an entry from the list select it and click Remove Selected 6 You can also block attachments that have a size bigger than a particular size To enable this option from the Options area select Block all attachments greater than the following size in KB and specify the maximum attachment size in KB note This feature blocks all attachments with a file size bigger than the one specified irrespective if the attachment matches an entry in the Attachment blocking list Step 2 Configuring the actions to take on detected emails 1 Click the Actions tab to configure what happens when this rule is triggered GFI MailEssentials 8 Content Filtering 165 General Actions Users Folders S Advanced Content Filtering Actions Actions Y Block email and perform this action Quarantine email Delete email
111. and select Domains IP exclusions tab HTML Sanitizer Whitelist Domain IP Exclusions 5 Domain IP Exclusions The domain exclusions provide the ability to exclude HTML Sanitizing processing for Mx records of a domain by specifying the domain name Server ip addresses can also be specified Exclusions Exclusion entry 7 T Remove h Examples domain com 192 168 1 1 M Query the SPF records of the specified domains for the list of the servers to exclude Screenshot 54 Domain IP Exclusions 2 Key in the domain or IP address to exclude and click Add note To remove an entry from the HTML Sanitizer DomainWP Exclusions select an entry and click Remove 3 Optionally select Query the SPF records of the specified domains for the list of the servers to exclude 4 Click Apply GFI MailEssentials 6 Email Security 100 7 Anti Spam The anti spam filters included with GFI MailEssentials help detect and block unwanted emails spam Topics in this chapter 7 1 Anti Spam filters 2 2 0 0 oo cece O 101 7 1 1 SpamRazer ooo cece cece cece es 102 ZAA ANG PASO e eco eat a Ale SL a ee a 105 7 1 3 Directory Harvesting 2 0 2 2 ccc ccc ccc cece ns 107 7 1 4 Emall block coco ole teh hee ed le a A lk nce ve 110 7 1 5 IP DNS BLOCKLiSt occ eecceee cc ceceeeee etideesenccesseveeUsadeeeveudanseseeeuevseessuvvuceseveteveevedsesse 112 7 1 6 URI DNS Blocklist 220000 0 2 cece cece cece cece eee e
112. and specify the IP of your GFI MailEssentials relay server within square brackets for example 123 123 123 Click Add and select the GFI MailEssentials email relay server Click OK Go to Address Space tab Click Add select SMTP and click OK N OA wo A GFI MailEssentials 3 Installation 30 8 Enter domain name and click OK 9 Select Allow messages to be relayed to these domains 10 Click OK Lotus Notes For more information on how to setup Lotus Domino routing refer to Installation Guide Domino SMTP POP3 mail server Configure your mail server to route all inbound and outbound email through GFI MailEssentials In the configuration program of your mail server use the option to relay all outbound email via another mail server this option is usually called something similar to Forward all messages to host Enter the computer name or IP of the machine running GFI MailEssentials Save the new settings and restart your mail server Step 6 Update your domain MX record to point to mail relay server Update the MX record of your domain to point to the IP of the new mail relay server If your DNS server is managed by your ISP ask your ISP to update the MX record for you note If the MX record is not updated all emails will be routed directly to your email server hence bypassing GFI MailEssentials Verify that MX record has been successfully updated To verify whether MX record is updated 1 From command pro
113. ard them to a particular email address note This section only applies for installations on Microsoft Exchange Server that have spam action Move to subfolder of user s mailbox enabled For more information refer to Spam Actions What to do with spam emails page 135 On other mail servers the anti spam global actions tab will not appear Configuring Anti spam global actions 1 Go to Anti Spam gt Anti Spam Settings GFI MailEssentials 7 Anti Spam 143 DNS Server Public Folder Scanning Remote Commands Anti spam logging Global Actions Perimeter SMTP Servers n Specify global actions to be performed Actions Configures the actions that will be performed when spam cannot be moved to a user s Exchange folder because the user does not exist on the Exchange server Delete Forward to email address Move to specified folder C Program Files x36 1GFMailEssentialstAntispamiglobalactions Log occurrence to this file C Program Files x86 GFINMailEssentials Antispam logs antispamglobal log Screenshot 80 Global actions 2 Select Global Actions tab and choose whether to Delete the email Forward it to an email address Move it to a specified folder 3 Select Log occurrence to this file to log these occurrences to a log file 4 Click Apply 7 5 3 DNS Server Settings DNS Server settings are very important in GFI MailEssentials since a number of ant
114. area change the number of the Remoting port to a one that is not utilized by other applications 3 Click Apply note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 4 Click Yes to restart the displayed services 5 Click OK 12 12 Monitoring Virus Scanning API When GFI MailEssentials is installed on the Microsoft Exchange machine you can monitor Virus Scanning API performance using the Performance Monitor MMC GFI MailEssentials 12 Miscellaneous topics 255 note Information Store Protection VSAPI is not supported on Microsoft Exchange Server 2013 because VSAPI was removed from Microsoft Exchange Server 2013 by Microsoft 12 12 1 Performance counter in Windows 2003 Server To add and view the performance monitor counter in Windows 2003 Server follow these steps Go to Start gt Control Panel In the Control Panel window double click Administrative Tools Double click Performance to start the Performance monitor MMC 1 2 3 4 From the System Monitor viewing pane click Add to load the Add Counters dialog 5 From the Performance object dropdown list select MSExchangelS 6 Click Select counters from list 7 Select any Virus Scan counter you need to add For more information refer to Performance monitor counters page 258 8 Click Add 9 Repeat steps 7 and 8 to add all the performance counters needed 10 Cl
115. ases users should add emails incorrectly identified as spam to Add to whitelist and This is legitimate email folders to teach GFI MailEssentials that the email in question is not spam notes 1 In Microsoft Outlook dragging and dropping email moves the email to the selected folder To retain a copy of the email hold down the CTRL key to copy the email rather than moving it 2 Detailed information how to create the GFI AntiSpam folders is included in this manual For more information refer to Enabling Public Folder Scanning page 149 Adding senders to the whitelist 1 In the public folders list of the mail client example Microsoft Outlook locate the GFI AntiSpam Folders gt Add to whitelist public folder 2 Drag and drop emails or newsletters to Add to whitelist public folder Adding discussion lists to the whitelist Emails sent to discussions lists have the discussion list s email address as the recipient of the message To receive emails from specific discussion lists the list s email address needs to be whitelisted 1 Using your email client example Microsoft Outlook locate the GFI AntiSpam Folders gt want this Discussion list public folder 2 Drag and drop discussion lists to the want this Discussion list public folder Use legitimate emails to teach the Bayesian filter 1 In the public folders of the mail client example Microsoft Outlook locate the GFI AntiSpam Folders gt Thi
116. ation refer to Working with Quarantined emails page 187 9 3 2 Creating editing and removing Custom Search Folders from Searches 1 Go to Quarantine node 2 Create a new search for quarantined emails For more information refer to Searching the quarantine page 180 3 In the results page click Save as Search Folder and key in an easily identifiable name for the new Search Folder The newly created search folder is listed in Quarantine gt Search Folders node note To edit or delete a previously created search folder access the search folder and click Edit Search Folder or Delete Search folder 9 3 3 Using the Search Folders node to auto purge quarantined emails The Search Folders node enables you to create Search folders and set an auto purge value in days When a quarantined email exceeds the specified number of days in the quarantine the email is deleted 1 Select Quarantine gt Search Folders node 2 Configure a new search folder for the emails to purge on a regular basis using the instructions in this chapter 3 Select Enable Auto purging and provide the number of days to keep emails for 4 Click Save Folder 9 4 Working with Quarantined emails Within GFI MailEssentials there are a number of actions you can take on quarantined emails The Quarantine Store is accessible from the GFI MailEssentials interface and the administrator can manage quarantined emails To access the GFI MailEssential
117. be to and click Copy Shortcut to copy the RSS feed URL 3 Use the copied URL in your RSS Feed Reader application to create a new RSS feed subscription 9 5 3 Securing access to the GFI MailEssentials Quarantine RSS feeds Configure who can subscribe to the quarantine RSS feeds from the Access Control node in GFI MailEssentials Configuration For more information refer to Access Control page 225 9 6 Quarantine Options Use the Quarantine Options to configure Quarantined Spam retention User Reporting and Quarantined Malware non existent user setup 9 6 1 Spam Options 1 Navigate to Quarantine gt Quarantine Options gt Spam Options GFI MailEssentials 9 Quarantine 192 General Options etting Use this tab to configure the general quarantine options for spam emails The quarantine store of spam emails can grow to several gigabytes of size depending on the quantity of quarantined emails and the retention period for emails Retention Period Spam quarantine store email retention 21 days recommended 21 days NOTE The default Spam email retention period is set in the Auto Purging options in Quarantine gt Search Folders Screenshot 104 Spam Options General Options tab 2 From the General Options tab change or confirm the Spam quarantine store email retention period 3 Click User Settings tab GFI MailEssentials 9 Quarantine 193 General Options User Settings
118. blocking Block all Block this list 7 Do not block attachments smaller than the following size oe Block all except this list Enter filenames with optional wildcards eg vbs eg letter vbs eg happy exe eg orders mdb Specify the file to use for importing AAA Screenshot 87 Attachment Filtering General Tab 3 Specify a name for the rule in the Rule name text box 4 Select whether to scan inbound outbound and or internal emails Check Inbound emails Select this option to scan incoming emails Check Outbound Select this option to scan outgoing emails emails GFI MailEssentials 8 Content Filtering 164 Foption Description Check Internal emails Select this option to scan internal emails NOTE This option is only available when GFI MailEssentials is installed on the Microsoft Exchange server 5 In the Attachment Blocking area specify the types of attachments to block CA f Description Block all Block all email attachments of any type Block this list Block a custom list of attachment types Key in a filename and or attachment type to block in the Enter filename with optional wildcards text box and click Add Repeat this step for all filenames and or attachment types to block Do not block Select this option to allow attachment types in the list that are smaller than a particular size attachments smaller Specify the size in KB in the text box provided th
119. canning works Overview of the engines that protect your mail system Typical deployment scenarios For more information refer to About GFI MailEssentials page 16 Installation The various environments and email infrastructures supported by GFI MailEssentials Product prerequisites applicable to your network Prepare your environment for product installation Guides you through the installation and upgrade procedures Walks you through the key steps needed to get the product running on default settings Test installation and run the product For more information refer to Installation page 24 Monitoring How to use the Dashboard to monitor status of GFI MailEssentials in real time status 5 e How to generate mail usage statistical and graphical reports For more information refer to Monitoring status page 45 User Actions Explains what domain users not domain administrators can do with GFI MailEssentials Configuring personal whitelists and blocklists Maintaining quarantined emails For more information refer to User Actions page 62 Email Security Explains how to configure anti malware scanning engines For more information refer to Email Security page 68 Anti Spam How to configure anti spam filters What to do with emails identified as spam Sorting the scanning order by filter priority General anti spam settings How users classify emails directly from their mailbox Publ
120. cc ceccccceccecceceeceeceeseesees 253 42 AIIREMOUING DOS E aan bole la ge tA oe 254 12 12 Monitoring Virus Scanning API 0 20 2200 22 ccc cece cece cece ence cnc ccecceeccecseeseessees 255 12 12 1 Performance counter in Windows 2003 Server ccoo 256 12 12 2 Performance counter in Windows 2008 Server coccion 256 12 12 3 Performance monitor counters aaao aoaaa aoaaa LLALLA LLDD DLLD L L22222 258 13 Troubleshooting and support ccoo ccoo ccoo noc cnn conc conc LLDD ALLL LPPE 22 o roaa 260 PERAMAN Selbe a AEN EE ANE ET net SATTE E T AEAT ATE 260 1 5 2 COMMON ISSUES A A A 260 13 3 Scanning engines amp filters ooo ccc cece ccc cecceccecceceeeceteeneetettseteeeeees 262 13 4 Email Management 2 0 2 0 occ cece cence ccc ec ccc cnceeceeceeceeecesceetneetetteetetessessesees 263 13 5 GFI SkyNet ens o cc ence ccc ncecceceecceccecceecseaeecenceteesceteeceetseeetseeseeaes 264 130 WED AS KU a n E AINEET EIERE VALSESIA ic SAGAN AeA tts le enue nea Gk ee eGR eRe eet ao 264 13 7 Request technical support 22 2 2 eee ccc ence c ence ccnccececeecceectesetseeettseeteesees 264 13 8 Documentation 22 0 2 2 0 a a a e e aa 264 14 Appendix 1 Bayesian Filtering 2 220 2 00 000000 oona ccoo ceceecceceeesenseneeteeee 265 14 0 1 Training the Bayesian Analysis filter 22 2 0 0c cece cece ceccecceccecceceeseees 266 15 Appendix 2 Lotus Domino 2 o oo cence ccc ccc cec ccc ceccecceceessenetnsevsttceeseeses 269 15 1 Lotus Dom
121. cc cee e cece cece eee c cece cece ceececeececeececeececeeceeees 28 3 2 1 Installing on the Microsoft Exchange server 2 2 20 0ccececcececcececceceeceeees 28 3 2 2 Installing on an email gateway or relay perimeter server 2 22 20 20020 28 3 3 Installation Procedure ess eee ek eel eae 32 3 3 1 Important notes 20 20 0 eee c ec eee ec ec cec cece ceececeececeececeeceeseceeeeee 32 3 3 2 Running the installation wizard _ 2 22 20 00 20 ccc cece cece ccc cecccccceceeceeceeceeseteteeees 33 3 3 3 Post Installation Wizard 00 0 2 200 20 c ccc ccc cece ec cee cccceccceceeceteeeceeceesetseeseesees 36 3 4 Upgrading a previous version 2 2 0 2 e cece cece cece ec ccc ec ce ceccececcececcececseceececsecesees 40 3 4 1 Upgrade Procedure 0 cco ence ia cial neice clad 40 3 5 Post Install actions 00 ii A bd ta 41 3 5 1 Add engines to the Windows DEP Exception List 0 0 00 0 20 cece eee ee eee ee eee 42 3 5 2 Test your installation 2220 20 ccc ccc ccc ccc cece ec ceccceceececccetsecseeseeseeeesees 43 4 Monitoring status 2 200 002 cc cece cece cece cc eeceeceeseecenceeaseeetsenseneetseneeeseenees 45 ANDAS ADO O te het ie e e e AO hi o ta Us ahd At ee O mn 45 4 1 1 Status and statistics 2020 a a a a e 46 4 1 2 Email processing logs 2220 00 occ c ccc ccncceccnccceeceeseeseeseesteseeseeseeaeens 49 4 1 3 Antivirus and anti spam engine updates 2 2 2 2 c ccc cc ccc eee cecceccecce
122. ccur when spammers try to guess email Yes only if GFI addresses by attaching well known usernames to your domain The MailEssentials is majority of the email addresses are non existent installed in an Active Directory environment Email Blocklist The Email Blocklist is a custom database of email addresses and domains Yes from which you never want to receive emails IP DNS Blocklist IP DNS Blocklist checks the IP address of the sending mail server against Yes a public list of mail servers known to send spam URI DNS Blocklist Stops emails that contain links to domains listed on public Spam URI Yes Blocklists Sender Policy This filter uses SPF records to stop email sent from forged IP addresses No Framework by identifying if the sender IP address is authorized Anti Spoofing Checks emails received with a sender email address claiming to No originate from your own domain against a list of IP addresses by GFI MailEssentials If the sender IP address is not on the list of own domain server IP addresses email is blocked Header Checking The Header Checking filter analyses the email header to identify spam Yes emails Spam Keyword This filter enables the identification of Spam based on keywords in the No Checking email being received Bayesian analysis An anti spam filter that can be trained to accurately determine if an No email is spam based on past experience 2 4 4 Filters running at SMTP level The following engines scan and block email
123. cecccececececeetcevsteseeseesetaes 162 8 2 Attachment Filtering 2 200 ccc c cece i aa aaro a aaa aha aai 163 8 2 1 Creating an Attachment Filtering rule 20 0 0 000 cc ccc cc ccc ceccecceceeess 163 8 2 2 Enabling disabling rules 22 20 2000 0 0 occ ccc cece ccc ec ccc ceccccccceeceeeeneeteenseteteeeeee 168 8 2 3 Removing attachment rules 222 20 0 cc ccc ncccccecceceeceeseeceeseeeeneeaes 169 8 2 4 Modifying an existing rule o oo cece cece cece ec ceccccceceeceeseeceeceeseetecneeaes 169 8 2 5 Changing the rule priority 00 0 0 0 cocoon ccccc ccc cccccecceceecetseeeeesseeesees 169 8 3 Advanced Content Filtering 2020 cc nc cnccccceccccceceeceeceeseessetesetseenes 169 8 3 1 Creating Advanced Content Filtering rules 2 0 20 0 0 0 0 ccc cece cece ecceccecececeees 169 8 3 2 Removing Rules 2 20 oo cece cece ec cecceccecceceeseescensenceceeteeteteseeseesetaes 173 8 3 3 Enabling Disabling Rules 2 0 00 0 0 00 20 ccc cece cece cece ec cccccccecceccececseeseeseeteeseeees 173 8 3 4 Sorting Rules 22 c ccc cece ccc cecceccececcceceeeeceeteeteeteeeseeeeeeseeseeaes 174 8 4 Decompression Engine 2 2 2 2 20 22 cece cece ence cece cece cece cece naraon nonn nannini onorarea 174 8 4 1 Configuring the decompression engine filters 20 2002 20 c cece cece cc eccec ccc ceceeee 174 8 4 2 Enable disable decompression filters 1 22 2 00 00 00 cece ccc cc ceccccceccecceceeceeseeees 179 D QU AR ANCIN
124. cetececeeceeseeseesteseeneeeens 195 9 7 Quarantine Store Location and Public URL ccoo 198 10 Email Management aaan oaaao cc cece ence cccncccccnceeceeseeceeseesseteetsetetteeteeeees 201 AOS DISCLAIMERS 2 rare al aha oe ds Woe te Erin bbe Sat Saeco ton 201 10 1 1 Configuring Disclaimers 2 20 20 0 20 ccc cece ccc cccnccnccceececceecteseeseesetseessenees 201 10 1 2 Disabling and enabling disclaimers 0 200 200 ccc ccc ec cc ccc ceccecceccecceceteeeees 205 102Z Auto REPU S revoca eta AE ee oI ae den ae ae eee A le oe 205 10 2 1 Configuring auto replies 2200 o oo c ccc nc cnc cncecceececcteseesseseeseeneesees 206 10 3 List Server 0000 00 ooo cece ccc cece ce cecccenceceeecceetneeeetnecetnceeectcssetccseetceeettceeees 208 10 3 1 Creating a newsletter or discussion list 00 00 0020 ccc ccc ccc ec ccc ceccecceceeceeseees 208 10 3 2 Using Newsletters Discussions 0 20 2 2 20 2 c ccc cceccecceccccceccecteceescesstseessesees 210 10 3 3 Configuring advanced newsletter discussion list properties 2 2 2 211 10 4 Mail Monitoring occ cece cece ccc c cece cnccccceceeceeceeseeneeceneeteeteenseteeeseeseeseees 215 10 4 1 Enabling Disabling email monitoring 2 0 20 0 0 c cece ccc cecceccecceeeeees 215 10 4 2 Configure email monitoring 2 2 2 eee ec ec cee ccc ceccecceececetcencetseesees 216 11 G n ral Settings iia e Seat ale ae Go rade Lo e ey 219 11 1 Administrator email address ooo EALLA
125. ch Area 2 From the Quarantine page select Malware and Content Only from Search for dropdown 3 Specify the required search criteria SEARCH DESCRIPTION CRITERIA Date Select the date range when the email was quarantined Available date ranges are Any date time Since yesterday Last 7 days Last 30 days Custom date range Search by Specify asender who sent the email that was quarantined sender Search by Specify a recipient for whom an email was quarantined recipient GFI MailEssentials 9 Quarantine 182 SEARCH DESCRIPTION CRITERIA Search for text Specify the text to search for within quarantined email subject in subject Quarantine Key in the reason for which the email to search for was quarantined Reason Item Source Select the source from where email was identified as Malware and quarantined Available options are Information Store VSAPI Gateway SMTP Information Store Transport Item Direction Select the direction of the quarantined email to search for gt Any Inbound Outbound note This option is available only if Gateway SMTP is selected in Item Source Quarantined by Select one of the GFI MailEssentials filters that quarantined the email Select Only checkbox to search for emails quarantined only by a specific filter 4 Click Search note Use the search results to review quarantined emails You can approve false positives for delivery to recipie
126. configure how keywords are matched Select Match whole words only to block emails where the keywords specified match whole words in the subject Step 3 Configuring the actions to take on detected emails 1 Click the Actions tab to configure what should be done when this rule is triggered 2 To block an email that matches the rule conditions select Block email and perform this action and select one of the following options GFI MailEssentials 8 Content Filtering 159 Foption Description Quarantine Stores blocked emails in the Quarantine Store You can subsequently review approve delete all the email quarantined emails For more information refer to Quarantine page 180 Delete Deletes blocked emails email Move to Moves the email to a folder on disk Key in the full folder path where to store blocked emails folder on disk LD IMPORTANT Actions always affect the whole email containing the blocked content even if there is other content such as attachments that do not trigger this rule note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 3 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients but with the malicious content removed 4 GFI MailEssentials can send email n
127. copyright of GFI SOFTWARE Ltd 1999 2012 GFI Software Ltd All rights reserved Document Version 1 5 0 Last updated month day year 06 03 2013 Contents AI O A a A EEEE 14 1 1 About this manual 2 252 225 a earn dace ld ii tip ia a ala 14 1 2 Terms and conventions used in this manual 0 2 2 22 2 cece eee cecceccecceccecceceesseees 15 3 ENG OTNS UNS an Roe sect at ee as SO yee eA cr latee cee tees 15 2 About GFI MailEssentials 2 2 2 2 20 2 cc ccc c ccc ec ccc ceccecceeceeceeseeseeceeceesteseeseeaeees 16 2 1 GFI MailEssentials components coco coco cnc ecceccecceccceceeceeceeeeeceteeteseeeseses 16 2 1 1 GFI MailEssentials scan engine 2 2 22 2 2 e ccc cc enc ceccnccececceeceeceeseeseessenees 16 2 1 2 GFI MailEssentials web interface 22 2002 0 c ccc c ccc cecc ccc cnccecccccecceceeceeseeseenees 16 2 1 3 GFI MailEssentials Email Management console 2 2 22ccecceccecceceeeeeeees 16 2 1 4 GFI MailEssentials Switchboard 0 00 02 202 c ccc cece eee ec ccc ec eccececceceececeececeee 16 2 2 Inbound mail filtering occ ccc cc ccc ccc cc ccc ccccecececenceteeceteceeseeseeseeseesees 18 2 3 Outbound mail filtering 22 2 c ccc nc ce ceccceceeceececeeeeeeseestessesseneeaes 18 2 4 Email scanning and filtering engines 2 220 202 0220 c cece cece cece ec ceccccceececeecteceteteeeeess 19 2 4 1 Malicious emails scanning occ 2c c cece cece cece ence cceccececceectecteseesseeeaeees 19 2
128. creenshot 9 Screenshot 10 Screenshot 11 Screenshot 12 Screenshot 13 Screenshot 14 Screenshot 15 Screenshot 16 Screenshot 17 Screenshot 18 Screenshot 19 Screenshot 20 Screenshot 21 Screenshot 22 Screenshot 23 Screenshot 24 Screenshot 25 Screenshot 26 Screenshot 27 Screenshot 28 Screenshot 29 Screenshot 30 Screenshot 31 Screenshot 32 Screenshot 33 Screenshot 34 Screenshot 35 Screenshot 36 Screenshot 37 Screenshot 38 List of Figures Specifying administrator s email address and license key 020 2 220 22 e eee eee eee 34 SMTP server and virtual directory details 0000 0 occ cece cece eeeeeceeeeeeees 34 DNS Server settings occ e cece cece aaea raonar aaar naranai 36 Proxy settings 22 0500 it il tii 37 Inbound email domains 2 2 2 duiiin rnrn 37 SES 38 Selecting the default anti spam action to use 222 2 22 eee eee 39 Creating a test rule on Keyword filtering 00200 02000 43 Test email blocked by Test rule 2000 coco ccc cee ccc cece eee e cece ceeeeeeeeeeeeeeeeees 44 The GFI MailEssentials Dashboard 2 2 0 22 200 222 ccc cece eee eee eee cence eee eeeee 46 The GFI MailEssentials Services 0 020 002 0022 2 occ cece nce eee cence eee cence eeeeeeee 47 Quarantine statistics 22 2200 e eect eeeeeeeees 47 Dashboard charts ccoo edanda a lolita rin id 48 Email processing logs ooooooccccccccccccccccccocccccccccnncoccccn ceeeeeceeeeeeeeee
129. ctivate this filter 3 In Email checking area specify the emails to check for Trojans and other malicious executables by selecting CAT f pescription OOOO Check inbound emails Scan incoming emails for Trojans and malicious executable files Check outbound emails Scan outgoing emails for Trojans and malicious executable files 4 From the Security settings area choose the required level of security Security Description Level High Blocks all executables that contain any known malicious signatures Security Medium Blocks suspicious executables Emails are blocked if an executable contains one high risk signature or a Security combination of high risk and low risk signatures Low Blocks only malicious executables Emails are blocked if an executable contains at least one high risk Security signature 5 From Actions tab configure the actions you want GFI MailEssentials to take on emails containing a malicious executable note Emails blocked by the Trojan amp Executable Scanner are always quarantined note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 6 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator
130. d Contains and key in swiss in textbox 4 Select whether to scan inbound outbound and or internal emails Check Inbound emails Select this option to scan incoming emails Check Outbound Select this option to scan outgoing emails emails Check Internal emails Select this option to scan internal emails NOTE This option is only available when GFI MailEssentials is installed on the Microsoft Exchange server Step 2 Configuring the actions to take on detected emails GFI MailEssentials 8 Content Filtering 170 1 From the Actions tab configure what happens when this rule is triggered General Actions Users Folders n Advanced Content Filtering Actions Actions Y Block email and perform this action 9 Quarantine email Delete email Move to folder on disk Send a sanitized copy of the original email to recipient s Notification options Notify administrator e Y Notify local user Logging options Log rule occurence to this file Co Screenshot 92 Actions Tab 2 To block an email that matches the rule conditions select Block email and perform this action and select one of the following options Quarantine Stores blocked emails in the Quarantine Store You can subsequently review approve delete all the email quarantined emails For more information refer to Quarantine page 180 Delet
131. d important GFI MailEssentials notices directly to the administrator Screenshot 125 Specifying the administrator s email address 2 Key in the administrator s email address in the Administrator email area 3 Click Apply 11 2 Enabling Disabling scanning modules From GFI MailEssentials you can enable or disable particular email scanning modules This allows switching on and off scanning engines or filters in batch GFI MailEssentials 11 General Settings 219 note This feature enables or disables particular scanning engines only Disabled engines do not process inbound outbound and or internal emails All other features of GFI MailEssentials such as the quarantine store is still functional 1 From the GFI MailEssentials Configuration navigate to General Settings gt Settings and select the General tab Scanning Manager Select which scanning modules will process emails Y Enable Email Security Y Enable Anti Spam Y Enable Content Filtering Screenshot 126 Scanning Manager 2 Enable or disable scanning modules option Description Enable Email Security Enables Disables the following scanning engines gt Virus Scanning Engines Information Store Protection Trojan amp Executable Scanner Email Exploit Engine gt HTML Sanitizer Enable Anti Spam Enables Disables the following anti spam filters SpamRazer gt Anti Phishing gt Directory Harvesting Email Blocklist
132. d right click the disclaimer 3 Select Disable or Enable to perform the desired action 10 2 Auto Replies Auto replies enable the sending of automated replies to specific inbound emails A different auto reply for each email address or subject can be specified Variables can also be used in an auto reply to personalize emails GFI MailEssentials 10 Email Management 205 10 2 1 Configuring auto replies 1 Click Start gt All Programs gt GFI MailEssentials gt Email Management Tools to load Email Management Tools 2 Right click Email management gt Auto Replies node and select New gt Auto Reply Email Address xi A Specify the email address to be used below Email Address johndoe mydomain cord eg someone company com Cancel Screenshot 114 Creating a new auto reply 3 Key in the email address that sends auto replies when receiving emails and click OK Example If sales master domain com is used senders sending to this email address will receive an auto reply johndoeamydomain com Properties General Si Auto Reply configuration When email is sent to fichndoe mydomain com 7 and subject contains Auto Reply from fiee mydomain com Auto Reply subject Thank you for your email Auto Reply text Attachment s C Users Administrator Desk Thank you for your email am currently not available to answer your le Import Export Var
133. d to the correct virtual server For more information refer to SMTP Virtual Server bindings page 223 3 MX record for domain not configured correctly Ensure that the MX record points to the IP address of the server running GFI MailEssentials 4 If inbound emails are passing through another gateway ensure that the mail server running on the other gateway forwards inbound emails through GFI MailEssentials 5 Ensure that outbound emails are configured to route through GFI MailEssentials For more information refer to Installing on an email gateway or relay perimeter server page 28 6 Verify that the SMTP virtual server used by Microsoft Exchange Server for outbound emails is the same SMTP server GFI MailEssentials is bound to For more information how to solve this issue refer to http go gfi com pageid ME_MonitorProcessing This problem occurs for emails that use one character set for the message header and a different character set for the message body When such emails are processed by Microsoft Exchange 2003 the emails will be shown garbled in Microsoft Outlook Microsoft has released a hotfix to resolve this issue For more information refer to http go gfi com pageid ME_OutlookCharacters and http go gfi com pageid ME_MessageGarbled Connect to Microsoft Exchange using IMAP For more information refer to http go gfi com pageid ME_POP3ViewSpam Ensure that un authenticated connections are allowed
134. dant gfiasmsecatt GFI MailEssentials LocalMode Host csecmlhost GFI POP2Exchange gfipop2exch 14 On completion bring the GFI MailEssentials group online 15 Shut down this node and start a new node 16 Repeat steps 1 and 2 for all cluster nodes 16 2 Uninstalling GFI MailEssentials in a cluster enviornment Ensure that only only one cluster node is turned on the rest should all be turned off 1 an uw KR W N 11 12 gt gt 13 14 Stop all GFI services Backup all the contents of theGFI MailEssentials installation folder to a different location Delete all GFI Services from the Cluster Resources from the group GFI MailEssentials Start all GFI services and ensure all cluster services and Exchange services are up and running Uninstall from first Node From command prompt Type sc delete msecavupdate and press Enter Type sc delete gfiasmsecatt and press Enter Click Start gt Run and type regedit Press Enter Locate and delete the Computer HKEY LOCAL MACHINE SOFTWARE GFI key Copy the backup of GFI MailEssentials to where it was installed Turn off the current node and start the next node Ensure all cluster services Exchange services and GFI MailEssentials services are up and running Uninstall GFI MailEssentials From command prompt Type sc delete msecavupdate and press Enter Type sc delete gfiasmsecatt and press Enter Repeat steps 7 to 12 for all remaining n
135. de an alternate address for this mailbox If the recipient is not on a localdomain the email will be forwarded to this address Alternate address for this mailbox OA Send mail to address stored in To field y Conca Screenshot 138 Adding a POP3 mailbox 5 Key in the POP3 server details mailbox login name and password of the mailbox Choose between Foption Description Send mail to address GFI MailEssentials will analyze the email header and route the email accordingly If email stored in To field analyzing fails email is sent to the email address specified in the alternate address field Send mail to All email from this mailbox is forwarded to one email address Enter full SMTP address in the alternate address Email address field 6 Provide the alternate address and click OK note When specifying the destination email address the address where GFI MailEssentials will forward the email to ensure that you have set up a corresponding SMTP address on your mail server note Multiple POP3 mailboxes can be configured 7 In the POP2Exchange configuration dialog configure option Description Check every minutes Specify the download interval Do not download mail larger than Specify amaximum download size If email exceeds this size it will not be Kbytes downloaded GFI MailEssentials 12 Miscellaneous topics 236 Foption Description If mail is larger then Choose to de
136. der s email address in outbound emails The list of users can also be managed from the GFI MailEssentials General Settings node For more information refer to Managing local users page 222 Click Next ie GFI MailEssentials for Exchange SMTP InstallShield Wizard IIS Setup Virtual Directory Website and SMTP Server selection F HIS Setup Select the website on which to create the GFI MailEssentials virtual directory Default Web Site http WINZK3SERV 80 y Enter the name of the configuration virtual directory to create MailEssentials Enter the name of the RSS virtual directory to create MailEssentialsRSS Installshield A Cancel Screenshot 2 SMTP server and virtual directory details 8 In the IIS Setup dialog configure the following options GFI MailEssentials 3 Installation 34 note Default settings are typically correct for most installations Foption Description The website to Select the website where you want to host the GFI MailEssentials virtual directories create the GFI MailEssentials virtual directory The GFI Specify a name for the GFI MailEssentials virtual directory MailEssentials Configuration virtual directory The GFI Specify a name for the GFI MailEssentials Quarantine RSS feeds virtual directory MailEssentials Quarantine RSS feeds virtual directory SMTP Server Setup Select the SMTP Server that GFI MailEssentials binds t
137. directions Select a particular email direction to display data for or select All email directions inbound filtering outbound internal to display data for all directions Email address Key in an email address to display report information for that particular email address only filtering Report Specify how to group data Available options are Grouping Group by Day Group by Week Group by Month Group by Year 4 Optionally enable Send every checkbox and configure a date time combination to have the report generate at a specific date and time Click Add Rule to save report generation time note To delete a rule select an existing report generation time and click Delete 5 Select whether to send report by email or save it to disk To send report by email select Send by email and provide the email address to where the email is sent To save report to disk GFI MailEssentials 4 Monitoring status 56 select Save to Disk provide a location where file will be saved the format of the file 6 Click Save to save newly created report 4 2 4 Generating custom reports To generate a custom report 1 From GFI MailEssentials configuration go to GFI MailEssentials gt Reporting gt Reports 2 From the Custom Reports tab select a report to generate 3 Click Generate 4 2 5 Deleting custom reports To delete a custom report 1 From GFI MailEssentials configuration go to GFI MailEssentials gt Reporting g
138. domainb com e Hs Sender Received Subject SSE z 7 Y 7 S 3 27 2012 s dministrator tcdomainb com jsmith tcdomainb com Threat test AE 3 27 2012 administrator tcdomainb com administrator tcdomainb com Threat test 980 3 27 2012 administrator tcdomainb com administrator tcdomainb com Threat test 1034 Screenshot 21 Reports database search results 4 Optional From the report filter the data by email direction sender receiver or subject 5 To export the report to another format select format and click Export 4 2 7 Configuring reporting database By default GFI MailEssentials uses a Microsoft Access database reports mdb located in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity data You can also use a Microsoft SQL Server database for reports Configuring a Microsoft Access database backend Configuring a Microsoft SQL Server database backend Configuring database auto purging GFI MailEssentials 4 Monitoring status 58 Configuring a Microsoft Access database backend Reporting Auto Purge e Configure reporting database Use this node to enable and use GFI MailEssentials Reporting This enables you to use the data collected by GFI MailEssentials and generate various reports Y Enable Reporting Current Database Settings Current type Microsoft Access Current location C Program Files x86 CFI MailEssentials data reports mdb New Database Set
139. e For the New Senders to work there has to be at least one whitelist enabled from the Whitelist configuration node Screenshot 72 New Senders General tab GFI MailEssentials 7 Anti Spam 134 2 In the General tab select Enable New Senders to enable check for new senders on all inbound messages General Exceptions Configure New Senders exception list Actions Configure any MIME TO addresses that should be excluded from the New Senders checks Enable New Senders exception list Email Addresses Edit emails Email list Current emails Screenshot 73 New Senders Exceptions 3 From Exceptions tab configure senders recipients whose emails are excluded from the New Senders check Enable New Senders exception list Select this option to enable the exceptions list Add exception Key in an email address to exclude and click Add Repeat for each address to add Edit exception 1 Select an exception from the Email list 2 Edit the email address 3 Click Update Delete exception Select an exception from the Email list and click Remove 4 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 5 Click Apply 7 2 Spam Actions What to do with spam emails The Actions tab in the Anti Spam filters properties define what should be done with emails marked as spam Diff
140. e When test is completed successfully delete or disable Test rule created in step 1 GFI MailEssentials 3 Installation 44 4 Monitoring status GFI MailEssentials enables monitoring of your email activity in real time or by generating reports of email activity for a particular time period Monitoring Description module Dashboard The GFI MailEssentials Dashboard provides real time information that enables you to monitor the product To access the Dashboard go to GFI MailEssentials gt Dashboard This includes Reports 4 1 Dashboard Important statistical information about blocked emails For more information refer to Status and statistics page 46 Status of GFI MailEssentials services For more information refer to Services page 47 Graphical presentation of email activity For more information refer to Charts page 48 List of emails processed For more information refer to Email processing logs page 49 Status of software updates For more information refer to Antivirus and anti spam engine updates page 51 Log of POP2Exchange activities For more information refer to POP2Exchange activity page 52 GFI MailEssentials enables you to create reports based on data logged to database To access Reporting go to GFI MailEssentials gt Reporting Enabling reporting For more information refer to Enabling Disabling reporting page 52 Configure reporting database For more information refer to
141. e 2 From the list of available filters click Check size of uncompressed files in archives 3 To enable this filter select Check size of uncompressed files in archives 4 Specify the maximum size of uncompressed archives in the Maximum size of uncompressed files in archive in MB text box If an uncompressed archive s size is bigger than the specified value the email is triggered as malicious 5 Specify what to do when an email contains an archive that triggers this filter GFI MailEssentials 8 Content Filtering 177 Popo Description Quarantine Quarantines blocked emails Automatically Delete Deletes blocked emails note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 6 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients but with the malicious content removed 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log
142. e Deletes blocked emails email Move to Moves the email to a folder on disk Key in the full folder path where to store blocked emails folder on disk LD IMPORTANT Actions always affect the whole email containing the blocked content even if there is other content such as attachments that do not trigger this rule GFI MailEssentials 8 Content Filtering 171 note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 3 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients but with the malicious content removed 4 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 5 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSec
143. e Quarantine Store contains all the quarantined items Sometimes it is necessary to move this store to a different location C Program Files GFI MailE ssentials Browse Quarantine Store size 22 5 Megabytes Free disk space 118 2 Gigabytes M Quarantine Public URL The Quarantine Public URL gives access to the Quarantine page from an external location not within the organization http 22 IN2ZK3SER 80 MailE ssentials Cancel Apply Screenshot 108 Quarantine Store location and Public URL 2 From Quarantine tab click Browse to select an alternate location for the Quarantine Store LD IMPORTANT Ensure that the disk partition where the Quarantine Store is saved has sufficient disk space Spam emails will not be quarantined if the free disk space is less than 512 MB On reaching 512 MB email quarantine operation will stop and spam will be tagged and delivered to recipients mailboxes until free disk space increases to more than 512 MB GFI MailEssentials 9 Quarantine 199 3 Provide an alternate URL as the URL to use to access the quarantine from an external location outside your organization 4 Click OK to save setup GFI MailEssentials 9 Quarantine 200 10 Email Management GFI MailEssentials includes a number of tools that facilitate management of incoming and outgoing emails Topics in this chapter 10 1 Disclaimers 2 2 22 2 ccc ccc c cece cece ccccceceecececceec
144. e Store location and Quarantine Public URL gt Specifying user account for the Move to Exchange Folder settings Specifying Remoting Ports Enable Disable failed mail notifications GFI MailEssentials 2 About GFI MailEssentials 17 2 2 Inbound mail filtering Inbound mail filtering is the process through which incoming emails are scanned and filtered before delivery to users GFI MailEssentials 3 Inbound emails are routed to GFI MailEssentials and processed as follows 1 SMTP level filters Directory Harvesting and Greylist can be executed before the email body is received 2 The email is scanned by the malware and content filtering engines Any email that is detected as containing malware is processed according to the actions configured If an email is considered as safe it then goes to the next stage 3 The email is checked to see if it is addressed to a list in the list server If the email matches a list it will be processed by the list server 4 The incoming email is filtered by the anti spam filters Any email that fails a spam filter check is processed as configured in the anti spam actions If an email goes through all the filters and is not identified as spam it then goes to the next stage 5 If configured auto replies are next sent to the sender 6 If configured email monitoring is next executed and the appropriate actions taken 7 Email is next checked by the New Senders filter 8 If em
145. e configuration of the server Select desired server and click Edit configuration Add Configuration Edit Configuration 68 Delete Configuration Server Name Parameters PominoSniAcme Screenshot 154 Click Edit Configuration From the configuration document page select Router SMTP tab and ensure that Basics is selected Double click on content to enable edit mode Select Relay host for messages leaving the local internet domain and enter the IP Address of the machine that GFI MailEssentials is installed Click Save and Close to save configuration document 15 2 4 Lotus Domino LDAP Settings From Lotus Domino enable Directory Catalog and Directory Assistance In the Directory Assistance database click Add Directory Assistance to create a new Assistance document In the document one must enable the LDAP clients under Make this domain available to as follows Basics Naming Contexts Rules Domino Domain type Notes bs Domain name Company name Search order ayer Make this domain M Notes Clients amp Internet Authentication Authorization available to Y LDAP Clients Group authorization No 15 Enabled Yes 15 Screenshot 155 Lotus Domino LDAP Settings In the server configuration one must edit the credentials under the configuration Anonymous authentication must be enabled so that GFI MailEssentials can access the Lotus Domino LDAP GFI MailEssentials 15 Appendix 2 Lotus Domino 272 Basic
146. e ec ence cece eee cece nee ne ec ene ene ensensensensenneas 204 Screenshot 114 Creating a new auto reply 0 0 e ccc eee eee eee eee eee eee e cece eee eeeeeeeeeneeeeeneeees 206 Screenshot 115 Auto reply properties 2 0 0 2 ccc ccc cece eee ee cence eee nee e eee e nee eneeenaeeneeeceenaes 206 Screenshot 116 Variables dialog 2 22 2 2 c cece ccc eee eee ee cece ene eee eeeeeneeeeneeeenceeeeneeeees 207 Screenshot 117 Creating a new list 2 02 cece ccc eee eee e ence ence ence ene e ence ene ceneeenesenseenseenaees 209 Screenshot 118 List footer properties 0 0 l ccc cee cece cece ec eee ee ee cease bees eeaeeeenaeeeeeaaeees 211 Screenshot 119 Screenshot 120 Screenshot 121 Screenshot 122 Screenshot 123 Screenshot 124 Screenshot 125 Screenshot 126 Screenshot 127 Screenshot 128 Screenshot 129 Screenshot 130 Screenshot 131 Screenshot 132 Screenshot 133 Screenshot 134 Screenshot 135 Screenshot 136 Screenshot 137 Screenshot 138 Screenshot 139 Screenshot 140 Screenshot 141 Screenshot 142 Screenshot 143 Screenshot 144 Screenshot 145 Screenshot 146 Screenshot 147 Screenshot 148 Screenshot 149 Screenshot 150 Screenshot 151 Screenshot 152 Screenshot 153 Screenshot 154 Screenshot 155 Screenshot 156 Screenshot 157 Screenshot 158 Setting permissions to the newsletter 000 000 c cece ec ee eee e cece eee ecceeceeeceeeeeeeees 212 Entering subscribers to t
147. e eeceeeeeeeteeeseseeeees 114 7 1 7 Sender Policy Framework 22200000 c cece cece c cece cece cece eccceeceeeeceeeeeeeeeeeceeseeeees 115 LEVES Ant Spoofing decir ii Le de onsale a Scenic ase iii 117 ASA A 119 7 1 10 Header Checking 2 222220 cece cece cece cece cece cece eee eee cece n aoaaa aaa 121 7 1 11 Spam Keyword Checking 2 2 2 000000000 c cece ccc cece cece cece cece eee c oaaao aaraa oaaao aana 124 7 1 12 Bayesian Analysis 00002000000 e cece eee e cece cece cece eeeeeeeeesevececceeeeeeres 128 FeV 13 WIESE oo cece cc A EA ATEA E E AAEE 130 7 1 14 New Senders occ cnn 134 7 2 Spam Actions What to do with spam emails 2 0 0 000222 o occ cece e cece ee cece ceeeceeeeeeeeeees 135 7 2 1 Configuring Spam Actions 2 2222 c oe cece eee ec eee cece cece e cece eee aara oraraa 136 7 3 Sorting anti spam filters by priority 00 000000000 e eee c aoaaa oaaao aa naana 138 7 4 Spam Digest 2 2 2 2 eee ee ence cece cece cece cece cece ee eeeeeeceeceeeeeeeeeeeeees 139 7 4 1 Configuring spam digests Administrator spam digest 0 2200000 ee cece cece cece eeeeees 139 7 4 2 Configuring spam digests Recipient spam digest 000 0 2 cece cece cece eee cece eeceeeeee 140 Le ANtl SpamVSettingS 2 52 2 ave ls sad it di Dole den toe eens oon de So gl Bee 142 7 5 1 Log file rotation 2 2 2 0 00 00 coc ccc cece cece ee eee cece cee cece conc n Eak cinc cnn 143 7 5 2 Anti Spam Global Actio
148. e eee eee eee E eee E da 254 12 12 Monitoring Virus Scanning API 22 0 e cece cece eeeeececcseeeeeeeees 255 12 1 Virtual directory names The default virtual directory names of GFI MailEssentials and Quarantine RSS are MailEssentials and MailEssentialsRSS respectively Virtual directory names are customizable however it is recommended that these are not changed note If GFI MailEssentials is configured to be accessed only from the local machine the GFI MailEssentials Configuration virtual directory is not configurable md Launch GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard 2 From IIS user interface mode options area specify custom virtual directory names for gt GFI MailEssentials Configuration key in a custom name in the Virtual directory field Quarantine RSS virtual directory key in a custom name in the RSS Virtual directory field 3 Click Apply 4 Click OK and wait while applying the new settings 5 When the process completes click OK 12 2 User interface mode The GFI MailEssentials user interface can be loaded on the installation machine only local mode or accessible via http over the network IIS mode GFI MailEssentials 12 Miscellaneous topics 227 To select the mode 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard N GFI MailEssentials Switchboard U
149. e eee eee eee eece seen eeeeeeeeeees 135 Anti spam ACTIONS eni eadem eue di za 136 Assigning filter priorities o asresten EAE AAEREN ee eee r EARP A e Eain ATEREA 139 Spam digest properties Administrator spam digest 0 00 cece eee eee e eee eee cece ees 140 Recipient spam digest 20 00 00 E E ET e cence eee cee e eee nncnnnns 141 Spam digest recipient list oeiee ad ra aea ee eee e eee eee A e cece eeeeeeeeeees 142 Screenshot 79 Log file rotation 2 000 cc eee e eee eee e ee eee eee eeeeeenaeeeeneneees 143 Screenshot 80 Global actions 2 0 22 ccc cece ec a e r E E a T E 144 Screenshot 81 DNS server settings 2 00 cece cece ccc ccc cece cecccccecececcccceccececcccceceeeecccceeeereeeeeees 145 Screenshot 82 Perimeter SMTP Server settings 0 0 cece cecccecccccececcecccceecccceeccceeececetececeeeres 148 Screenshot 83 Content Filtering Body Tab setting conditions 02 cc cece e cece ce eeeecccceceeeeee 158 Screenshot 84 Content Filtering Body Tab configuring other options 22 cceeeeeeeeccceceeeeee 159 Screenshot 85 Content Filtering Users Folders Tab 2 0 ccccceecccececccecccccecccccecceeececeeeeeceees 161 Screenshot 86 Add users to a Content Filtering rule 2 1 2 elo cece cece c ec ecececccececcccececececcceeeecees 161 Screenshot 87 Attachment Filtering General Tab 200 22 cc ccceccccceccccecccccecccececccceecccceeseees 164 Screenshot 88 At
150. e port to connect on default value is 8080 5 If the proxy server requires authentication select Enable proxy authentication and key in the Username and Password 6 Click Apply GFI MailEssentials 11 General Settings 221 11 4 Local domains General Updates Local Domains pi d Local Domains Local Domain PT E Domain Description Add Local Domain List Domain Description tcdomainb com Remove Screenshot 128 Local Domains list GFI MailEssentials requires the list of local domains to enable it to distinguish between inbound outbound or internal emails During installation or post install wizard GFI MailEssentials automatically imports local domains from the IIS SMTP service or Microsoft Exchange Server In some cases however local domains may have to be added manually LD IMPORTANT GFI MailEssentials only filter emails destined to local domains for spam Some rules filter are also based on the direction This is determined by the local domains To add or remove local domains after installation follow these steps 1 Go to General Settings gt Settings and select Local Domains tab 2 Key in the name and description of the domain to add in the Domain and Description text boxes 3 Click Add to include the stated domain in the Local domains list note To remove a listed domain select it from the list and click Remove 4 Click Apply 11 5 Managing local users
151. ececeecceneececececcsccccececeeeeeeeeeeeees 201 10 1 1 Configuring Disclaimers 2 000 000 cc cece ccc ccc ccc cece e cece cece eee eee eeeeeeeeeeeceeeeeees 201 10 1 2 Disabling and enabling disclaimers 200 000 0002 ccc ccc cece cece cece cece c cc ceeceeeeeeeeceeeees 205 10 2 Auto Replies 2 2 0 0 02 ecco ccc ccc ccc cece cece cece eee cece eee e cece eeeeeeeeeeeeeeeeeeeeereeeeeeeeeres 205 10 2 1 Configuring auto replies 2 2 2 2 2 0 e cece cece oaoa oada aaa aaa 206 10 3 List Server nn 208 10 3 1 Creating a newsletter or discussion list 2 0022222 o occ cece cece cece ceeceeeeeeeeeeeees 208 10 3 2 Using Newsletters Discussions 0 02 20 c occ ce cece cece eee ce cece cece aaa oaaao anana 210 10 3 3 Configuring advanced newsletter discussion list properties 220000 eee cece eee 211 10 4 Mail Monitoring o cnn 215 10 4 1 Enabling Disabling email monitoring 0000 00 00 ccc ccc cece cece cece eee cece eeeeeeeeeeeeees 215 10 4 2 Configure email monitoring 22 0 0 coe eee cee cece cece cece eee ceeeeeeeeeeeeeeeeees 216 10 1 Disclaimers Disclaimers are standard content added to the bottom or top of outbound email for legal and or marketing reasons These assist companies in protecting themselves from potential legal threats resulting from the contents of an email and to add descriptions about the products services offered Configuring Disclaimers gt Disabling Enabling Disclaim
152. eceeeees 51 4 1 4 POP2Exchange activity 2 20 00 0 coco ccc ccc ccc cece ec ccc ccc ceccccencetceceteseeseesetneeeess 52 AZ ROEDORES rt dada Uneaten bbl Banas dol leanne roo 52 4 2 1 Enabling Disabling reporting 2 2 2 0 c cece cnc ccccccceceeceeceecetseessesees 52 4 2 2 Generating a report ccoo c ccc ec cee ccececcececeeneeceeesetsetseeseesesees 53 4 2 3 Custom reports oaaao occ cece cece ccc ec ccc ccc ceccecceeceeceeseseteeneecsetseeseeseteeseesees 56 4 2 4 Generating custom reports coco cece ccc ccc ence cece cece cece ecceeeeeeseeeeeeees 57 4 2 5 Deleting custom reports 2 2 2 2 eee cece cece ence nce ccnccececceeceeseeseesteseeeeseeeees 57 4 2 6 Searching the reporting database 2 2 2 0 2 cece cece cecccccccccccecceccesseeeseees 57 4 2 7 Configuring reporting database 2 2 2 00 ce cc cccceccecceccececcceceeseeseenceeess 58 D User ACTIONS cia das ii ens ds 62 5 1 Personal Whitelist and Blocklist o oooocccccccccccccccccccccccccccc conc cnccnncn cnn raa o orrn a 62 5 2 Quarantine Search 222 2 o oo cece cece cc ccc ccc cc ccc cccceceecceeeceneeceetceveeteteseeseesteeeneeees 64 5 2 1 Using the Quarantine Search 2 0 2 2 20 e cece cece ccc ec cncceccececcceceeceeceeseessesenseaes 65 6 Email SECUILY esasan dl di ds tad 68 6 1 Virus Scanning Engines 20 2 0 22 c ccc ccc ccc ccc cnc cence cece cece cece cee eeeeeeteeceseetseetseeeees 68 O VIP ne ath en ee crete ias Sine du toed Sher Sth DN anid amide Bad s Wa
153. ecify a date and a time when email is sent 4 Specify the digest content that will be sent in the email Total count of processed email and spam Total spam captured per spam filter List of blocked spam or any combination of options as required GFI MailEssentials 7 Anti Spam 141 Administrator Digest Recipient Digest Recipient List Do Specify which recipients should or should not receive the spam digest via email For the recipient digest specify the inbound domain recipients that should or should not receive the spam digest o Only users listed below should receive the recipient spam digest All users except the ones listed below will receive the recipient spam digest Email Address List 22 O Ta Screenshot 78 Spam digest recipient list 4 Click on the Recipients list tab add the users to receive the spam digest and select the method used to determine who should receive the spam digest Available options are Only users listed below should receive the recipient spam digest All users except the ones listed below will receive the recipient spam digest note The required list of users can also be imported from a file in XML format in the same structure that GFI MailEssentials would export files 6 Select Apply to finalize settings 7 5 Anti Spam settings The following settings are configurable for anti spam filters and emails blocked by anti spam filters on
154. ection o aior erdee nepa aeaaea eee eee cece teen e ecco nn 270 Verifying the MX record of the DNS 0 22 0 00 cece eee cece eee eee cece ee eeeeeeeees 271 Lotus Domino Administrator click Configurations option 0 000 00 cece eee eee eee 271 Click Edit Configuration 0 000000000 c cece cece cece cece ee AKARATTAL ENNE 272 Lotus Domino LDAP Settings 2 2 0 0 cece cece cece cece cece cece cececcecceceeeeeeeees 272 Enable Anonymous Authentication 2 0 0 0 0 02 c cece cece cece ccc ccccccececccececeeeeeeeeeeeeeees 273 Create a new database 2 2 0 0 ccc cece ccc ec ece ce cccececcceeeacerecccerevctesuceteasacseusass 274 Load convertirla A sau tdi 274 Screenshot 159 Copy to the clipboard a link to the current application 0 coc e eee eee eee eee 275 Screenshot 160 Include all public and other users folders when a folder list is requested 275 Screenshot 161 New mail in database 2 000 0 0 ce cece cece cece cece eee nono ncnn cnn cnn nc nnncnnncnnnes 276 Screenshot 162 Enable Public Folder Scanning 0 cccccceccccecccccececececccececcceeeccececcceeeceees 277 1 Introduction 1 1 About this manual The scope of this Administrator Guide is to help you install run configure and troubleshoot GFI MailEssentials on your network The table below describes the contents of this guide About The components and tools that make up GFI MailEssentials gt How inbound and outbound mail s
155. ed files attached to an email The following is a list of checks performed by the decompression engine Password protected archives Corrupted archives Recursive archives Size of decompressed files in archives Amount of files in archives Scan within archives 8 4 1 Configuring the decompression engine filters To configure decompression engine filters 1 Navigate to Content Filtering gt Decompression node Decompression J Decompression Engine lt Disable Selected Enable Selected Description Status Check password protected archives Enabled Check corrupted archives Enabled Check for recursive archives Enabled Check size of uncompressed files in archives Enabled Check for amount of files in archives Enabled Scan within archives Enabled Screenshot 95 Decompression engine checks 2 Click the decompression filter to configure GFI MailEssentials 8 Content Filtering 174 Check password protected archives Check corrupted archives Check for recursive archives Check size of uncompressed files in archives Check for amount of files in archives Scan within archives Check password protected archives 1 Navigate to Content Filtering gt Decompression node 2 From the list of available filters click Check password protected archives 3 To enable this filter select Check password protected archives 4 Specify what to do when an email contains an arch
156. ee eee eeeeeeeeeeeteceeeeeeeeeeeees 19 2 4 2 Content filtering engines 2 2 2 cece eee e cece nn cece eereeeeeeeeeeeesseeeeees 19 2 4 3 Anti spam filtering engines 2 2 e eee cece cece cece eeeeeeeeeseeeeeeeesees 19 2 4 4 Filters running at SMTP level 00 00 2 022 cece ccc ccc cece eee cece cece eee eeeeeeeeeeeeeeceeeeeeeeeees 20 2 4 5 Other engines nace 20 2 4 1 Malicious emails scanning The following engines scan and block emails containing malicious content Email scanning Description engine Virus Scanning GFI MailEssentials uses multiple antivirus engines to scan inbound outbound and internal emails for Engines the presence of viruses GFI MailEssentials ships with Vipre and BitDefender Virus Scanning Engines You can also acquire a license for Norman Kaspersky amp McAfee Information When GFI MailEssentials is installed on the Microsoft Exchange server machine Information Store Store Protection allows you to use the Virus Scanning Engines to scan the Microsoft Exchange Information Protection Store for viruses Trojan amp The Trojan and Executable Scanner analyzes and determines the function of executable files executable attached to emails This scanner can subsequently quarantine any executables that perform scanner suspicious activities such as Trojans Email exploit The Email Exploit Engine blocks exploits embedded in an email that can execute on the recipient s engine machine either when the u
157. eeceeeeeeeeeeees 49 Email processing logs filter 2 002 000 occ ec cece e eee e cece oaaao aadar aaraa 50 Virus scanning engines updates 2 2 2 2 c eee cece cece e eee cece cece aaa aaia anaana 51 POP2EXchangedOS ei tr nad tea Se eee ee 52 Creating a report 20 2 2 c ccc ccc cece cece eens sees seeeeeseeeeeeeeees 53 Emails blocked graph report 2200 00 c cece cece ccc cece cece eee cece eeeceeeeeeeeceeseeees 55 Searching the reporting database _ 220 2200 eee ccc eee ce cece cece cece eeceeeeeeeeeeees 57 Reports database search results 2 22 22 2 2202 e eee cece eee eee eee cence eeeeeeees 58 Configuring a Microsoft Access database backend 222 2222 e eee e eee ee eee 59 Configuring SQL Server Database backend 22 22 2220 0c e eee e eee eee eee 60 GFI MailEssentials logged on as a USEF 2 222 e cece cece ee eeceeeeeeeeeeees 63 Personal Whitelist Blocklist 220000000000 0 0000 c occ eec ccc ee cc eeee eee eee e eee eee eeeeeeeees 64 GFI MailEssentials logged on as a USEF 2 2 e eee ceeeeeeeeeeeeeees 65 Quarantine Search 2 0 2 0 nn eeeeeeenees 66 Quarantine Search Results 2 2 222 2 02 e eect cnn cnn 67 Vipre configuration 1 2 2 0 000 000 c cece eee eee cnc 69 Virus scanning engine actions 0 0 20000 e cece eee e eee eeeeeeeeeeeeeeeseeeees 70 Virus scanning engine updates l 0000000000000000 cece cece eee cece ee aadar aoaaa aaan 71 BitDefender
158. eee eee ceeeeeeeeeeeseeeeanes 83 McAfee configuration 2 0 cece cece cece ecccccccecccccccececccccccceeecccccecceeeeeeecceeeeeeees 84 Virus scanning engine actions 0 2 2 2 2c cece ccc ee cece cece cece cee nn nn eeeeeeeeeeaeeees 85 Virus scanning engine updates 2 cece cece cece eee e cece c eee eeeeeeeeeeeseeeeaees 87 Information Store Protection node 0 0 2 cc cece cece eee e cece eee e eee eeceeeeeeceeceeeeeeeees 89 VSAPESEtHNGS So so cet MU ot ete dit wl a ee hi oe od tet 90 Trojan and Executable Scanner General Tab 0000 2 200 e cece cece eee cece cece ee eeeeeeees 91 Virus scanning engine updates 2 0 2 eee eee e cece tence ee eeeeeeeeeeeeeaees 93 Email Exploit configuration 2 00 0 0 ccc ccc cece cece ce eecccccccececccccceecececcccceceeeeecceeeees 94 Virus Scanning Engine Configuration page Actions Tab 2 cc ecceceeeeeccceeeeeeeees 95 Virus scanning engine updates 22 2 c ccc cece cece eee cece ee eeeeeeeseeeeaeenes 96 EmaiGExploit List 5353 2 5 0922s cena A eee Nhe cue add eb sng as do O 97 HTML Sanitizer configuration page 0 cece eee ccc ccc eee ccecccceececccccccceeececcceeeeeeeee 98 HTML Sanitizer Whitelist page 00 2 2 occ e cece cence eee eee eeeneeneeees 99 Domaini P EXCLUSIONS copada ii Aid costes 100 SpamRazer Properties 2 0 0 2 cee c cece cece cece cece ccc ccc cece cece eee eeeeseteeteerseccececeeeeeces 103 SpamRazer Updates tab 2
159. email address in outbound emails To add a new local user 1 Enter the email address in the Email address box 2 Click Add 3 Repeat to add more local users and click Apply To remove a local user 1 Select the local user you want to remove from the Local Users list and click Remove 2 Repeat to remove more local users and click Apply 11 6 SMTP Virtual Server bindings GFI MailEssentials always binds to the first SMTP virtual server configured in IIS In case of multiple SMTP virtual servers GFI MailEssentials may be required to be bound to a new or a different SMTP Virtual Server GFI MailEssentials 11 General Settings 223 note The SMTP Virtual Server Bindings tab is not displayed if you installed GFI MailEssentials on a Microsoft Exchange Server 2007 2010 machine 11 6 1 Binding GFI MailEssentials to another other SMTP Virtual Server note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 1 Go to General Settings gt Settings and click Bindings tab 2 Select the SMTP Virtual Server to bind GFI MailEssentials to 3 Click Apply 4 GFI MailEssentials will ask to restart services for the new settings to take effect 11 7 Version information Version Information v o Version Information Product description Product name GFI MailEssentials for Exchange SMTP Company name GFI Software Ltd Current build version
160. emails fail to be scanned for Malware and Content Filtering MV Send Notifications on Failed Mail OK Cancel Apply Screenshot 135 Enabling Failed emails notification 2 Select Send Notifications on Failed Mail 3 Click Apply note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 4 Click Yes to restart the displayed services 5 Click OK 12 4 Tracing GFI MailEssentials provides the facility of creating log files for debugging purposes Use tracing for troubleshooting purposes or when contacting GFI Support Disable tracing if there are performance issues with the GFI MailEssentials machine When enabled GFI MailEssentials stores a number of log files in the following folders gt lt GFI MailEssentials installation path gt GFl MailEssentials DebugLogs gt lt GFI MailEssentials installation path gt GFl MailEssentials DebugLogs GFI MailEssentials 12 Miscellaneous topics 233 gt lt GFI MailEssentials installation path gt GFl MailEssentials AntiSpam DebugLogs gt lt GFI MailEssentials installation path gt GFl MailEssentials WwwConf DebugLogs To enable or disable Tracing 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Tracing tab N GFI MailEssentials Switchboard UI Mode Troubleshooting Tracing Quarantine Other
161. ent 0 PT Audit options F Save quarantine audit to this file fauarantineaudtiog 22222 If no path is specified the audit file will be saved to the EmailSecurity Data folder by default Audit files are saved with the current year number appended to the specified filenames e g quarantineaudit_201 2 log Screenshot 106 Quarantine Mode 2 From Quarantine Mode tab select Send quarantine approval forms by email checkbox to enable the sending of Quarantine Approval Forms 3 From the Select recipient area specify the recipient of the Quarantine Approval Forms Send to Sends Quarantine Approval Forms to the administrator as configured in General Settings node administrator For more information refer to Administrator email address page 219 Send to the Sends Quarantine Approval Forms to another email address Key in the recipient in the text box following email provided address 4 Optional Select Save quarantine audit to this file and configure a filename where to save a copy of the quarantine log 5 Click Apply Nonexistent Recipients The GFI MailEssentials Nonexistant recipients feature scans emails for non existing local email addresses before these are stored to the Quarantine Store If an email contains non existing local email addresses it is permanently deleted This reduces the number of emails for administrative reviewing GFI MailEssentials 9 Quarantine 196
162. er always has to include an SMTP to address However the MIME to email address is often not included or is different Y NOTE This feature identifies a lot of spam however some list servers do not include the MIME to either It is therefore recommended to whitelist newsletter sender address to use this feature Performs a DNS lookup on the domain in the MIME from field and verifies the domain validity note Ensure that the DNS server is properly configured to avoid timeouts and slow email flow Identifies the presence of numbers in the MIME from field Spammers often use tools that automatically create unique reply to addresses by using numbers in the address Checks the message header and body for URLs which have a hex octal encoded IP http 0072389472 hello com or which have a username password combination for example www citibank com scammer com The following examples are flagged as spam gt http 12312 gt www microsoft com hello 01 123123 Flag emails that only have remote images and a minimal amount of text as spam Assists in identifying image only email spam Checks if the email contains one or more embedded GIF images Embedded GIF images are often used to circumvent spam filters LD IMPORTANT Since some legitimate emails contain embedded GIF images this option is prone to false positives Checks email attachments for properties that are common to attachments sent in spam email This
163. erent actions can be defined for each of the spam filters For Example Delete emails detected by SpamRazer filter but do not delete emails marked as spam by the Email Blocklist filter GFI MailEssentials 7 Anti Spam 135 7 2 1 Configuring Spam Actions In the Actions tab select an option that defines which action to take on emails marked as spam General Exceptions Actions S Select the action to perform when this filter blocks a spam email Actions Quarantine email Delete email Perform the following action s Deliver email to mailbox In Inbox In Exchange junk email folder In Exchange mailbox sub folder Move to folder on disk Tag the email with specific text Specify how the tag will be applied to the email Prepend to subject Append block reason to email subject Logging options F Log rule occurrence to this file Screenshot 74 Anti spam actions Quarantine Emails detected as spam are stored in the Quarantine Store Other spam actions are disabled if the email Email is quarantined For more information refer to Quarantine page 180 Delete Delete an email blocked by that particular spam filter Other spam actions are disabled if the email is Email deleted GFI MailEssentials 7 Anti Spam 136 Deliver Choose the folder where to deliver the email Available options are email to gt In Inbox Routes spam to user s inbox mailbox
164. ers 10 1 1 Configuring Disclaimers 1 Click Start gt All Programs gt GFI MailEssentials gt Email Management Tools to load Email Management Tools 2 Select the Disclaimers node and double click a disclaimer to edit settings Alternatively to create a new disclaimer right click Disclaimers node and select New gt Disclaimer Add Disclaimer xi D Select whether you would like to add this disclaimer for a User or for a Domain Disclaimer Type Domain Disclaimer User Disclaimer Cancel Screenshot 109 Choose Disclaimer type GFI MailEssentials 10 Email Management 201 3 Select Domain Choose the domain from the list of configured domains All emails sent from that domain will have the Disclaimer disclaimer added User Disclaimer Specify a user or group of users to whom the disclaimer is added for outbound emails If GFI MailEssentials is in Active Directory mode pick users or groups of users directly from Active Directory else specify the SMTP email address of the user New Disclaimer Properties xi General HTML Plain Text Exclusions A Configure disclaimer settings Disclaimer Name New Disclaimer Domain tedomainb con Select gt Specify position of disclaimer Bottom Cancel Apply Help Screenshot 110 New Disclaimer general properties 4 In the General tab key in Disclaimer Name click Select to change the domain or user Select Top or Botto
165. ers and the word Viagra in the s Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 Click Apply Removing conditions To remove a Spam Keyword Checking condition 1 2 From the Conditions list area within the General or Subject tab select one or more conditions to remove note To find the condition to remove use the controls under the list of conditions to move between the pages listing the conditions Click Remove and Apply Importing and Exporting conditions To export more conditions 1 From the Conditions list area within the General or Subject tab select one or more conditions to export GFI MailEssentials 7 Anti Spam 127 note To find the conditions to export use the controls under the list of conditions to move between the pages listing the conditions 2 In the File Download screen click Save and select a folder where to save the export file To import conditions 1 From the Conditions list area within the General or Subject tab key in the folder and filename of the file to import 2 Click Import 7 1 12 Bayesian Analysis An anti spam filter that can be trained to accurately determine if an email is spam based on past experience This manual also contains information how the Bayesian filter works and how it can be trained For more information refer to
166. erver 2007 Choose WebDAV or Web Services Exchange Server 2010 Choose Web Services Options are described in the table below option peseription MAPI To use MAPI GFI MailEssentials must be installed on the machine on which Microsoft Exchange Server is installed No other settings are required IMAP Requires Microsoft Exchange IMAP service IMAP enables remote scanning of public folders and works well in environments running firewalls In addition IMAP can be used with other Mail servers that support IMAP Parameters required are Mail server name Port number default IMAP port is 143 Username password Select the Use SSL option to use a secure connection WebDAV Specify mail server name port default WebDAV port is 80 username password and domain To use a secure connection select the Use SSL checkbox By default public folders are accessible under the public virtual directory If this has been changed specify the correct virtual directory name to access the public folders by editing the text in the URL box GFI MailEssentials 7 Anti Spam 150 Foption Description OOOO Web Services Specify the following details 5 Server mail server name Domain use the local domain O NOTE If both a local and a public domain exist always use the local domain 2 Port default Web Services port 80 or 443 if using SSL Username password use credentials with administrative privileg
167. es or create a dedicated user from Microsoft Exchange Management Shell by entering the following command to add the appropriate permissions Add ADPermission identity Mailbox Store User NewUser AccessRights GenericALL Replace Mailbox Store with the name of the mailbox store that contains the user mailboxes and NewUser with the username of the created user Use SSL Select this option if Exchange Web Services require a secure connection By default Web Services requires SSL URL By default public folders are accessible under the EWS exchange asmx virtual directory If this has been changed specify the correct virtual directory name to access the public folders by editing the text in the URL box Y NOTE It is recommended to test the settings manually by loading the URL in a web browser This should load an XML formatted file named services wsdl Click Scan Now to automatically create the Public folders Click Test if you are setting up IMAP WebDAV or Web Services On screen notification will confirm success failure If the test fails verify update credentials and re test Click Apply Configure a dedicated user account for Microsoft Exchange Server 2003 For security reasons it is recommended that when GFI MailEssentials is installed in a DMZ a dedicated user account is created to retrieve scan emails from public folders 1 2 3 4 5 6 n Create a new Active Directory AD user Fr
168. est properties Administrator spam digest 2 From the Administrator Digest tab click Send administrator spam digest to enable spam digest 3 Configure the desired sending frequency Daily Weekly Monthly and specify a date and a time when email is sent 4 Specify the digest content that will be sent in the email either a Total count of processed email and spam or Total spam captured per spam filter or both 5 Finalize settings by selecting Apply 7 4 2 Configuring spam digests Recipient spam digest 1 Go to Anti Spam gt Spam Digest GFI MailEssentials 7 Anti Spam 140 Recipient List Administrator Digest Recipient Digest oy g Enable and configure the recipients spam email digest The recipient spam digest is an email sent to inbound domain recipients which contains for the recipient s email the total email processed the total spam blocked per spam filter and the details of each spam email V Send recipient spam digest Options Frequency Day Time py TAE Tf 5 Digest Contents Total count of processed email and spam V Total spam captured per spam filter List of blocked spam date time sender subject Screenshot 77 Recipient spam digest 2 From the Recipient Digest tab select Send recipient spam digest to enable spam digest 3 Configure the desired sending frequency Daily Weekly Monthly and sp
169. eter server configure that machine to act as a gateway For more information refer to Installing on an email gateway or relay perimeter server page 28 Save any pending work and close all open applications on the machine 5 GFI MailEssentials installation restarts Microsoft Exchange or Microsoft IIS SMTP services This is required to allow GFI MailEssentials components to register correctly note It is recommended to install GFI MailEssentials at a time when restarting these services has the least impact on your network 3 3 2 Running the installation wizard 1 Run the GFI MailEssentials setup program 2 Select the language to use with this installation of GFI MailEssentials and click Install note Language selection is not reversible You will need to reinstall GFI MailEssentials to change the language selected at this stage 3 Click Next in the Welcome page 4 Select whether to check for newer versions builds of GFI MailEssentials and click Next 5 Read the license agreement and click accept the terms in the license agreement if you accept the terms and conditions Click Next i GFI MailEssentials for Exchange SMTP InstallShield Wizard Administrator Email and License Key Enter administrator s email address and license key F Please enter the administrator email address Administrator Email JAdministrator masterdomain com Please enter the license key provided to you For ev
170. fer to Content Filtering page 156 4 Click Apply 8 4 2 Enable disable decompression filters To enable or disable decompression filters 1 Navigate to Content Filtering gt Decompression node 2 From the Decompression engine page select the checkbox of the filters to enable or disable 3 Click Enable Selected or Disable Selected accordingly GFI MailEssentials 8 Content Filtering 179 9 Quarantine The GFI MailEssentials Quarantine feature provides a central store where all emails detected as spam or malware are retained This ensures that users do not receive spam and malware in their mailbox and processing on the mail server is reduced Administrators and mail users can review quarantined emails by accessing the quarantine interface from a web browser GFI MailEssentials can also send regular email reports to email users to review their blocked emails Refer to the following sections for more information on configuring the GFI MailEssentials Quarantine 9 1 Important Notes 0 2 222 o elle cece cece ccc e cece ee cece ee eeeeebeceeeeeeceeeeeteeeeereeees 180 9 2 Searching the quarantine 200 0 cece cece ccc ec cece cece cece cece cece eeeeeeeeceeeeeeeeceesees 180 9 3 Search Folders ankeren r ee cece encerrona 185 9 4 Working with Quarantined emails 2 2 2 0 0 0 200000 c eee ce cece ee eeeeeeeeeeeeeeeeeeeeeeee 187 9 5 Quarantine RSS Feeds nana 190 9 6 Quarantine Options cnn 192 9 7 Quarantine Store Location and Publ
171. filters and are always delivered to the recipient For more information refer to Whitelist page 130 Test your installation After configuring all post install actions GFI MailEssentials is ready to start protecting and filtering your mail system from malicious and spam emails Test your installation to ensure that GFI MailEssentials is working properly For more information refer to Test your installation page 43 3 5 1 Add engines to the Windows DEP Exception List Data Execution Prevention DEP is a set of hardware and software technologies that perform memory checks to help prevent malicious code from running on a system If you installed GFI MailEssentials on an operating system that includes DEP you will need to add the GFI MailEssentials scanning engine GFiScanM exe and the Kaspersky Virus Scanning Engine kavss exe executables note This is required only when installing on Microsoft Windows Server 2003 SP 1 or SP 2 To add the GFI executables in the DEP exception list 1 From Control Panel open the System applet 2 From the Advanced tab under the Performance area click Settings 3 Click Data Execution Prevention tab 4 Click Turn on DEP for all programs and services except those select 5 Click Add and from the dialog box browse to lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity and choose GFiScanM exe GFI MailEssentials 3 Installation 42 6 Click Add and from t
172. folder a Transport Rule needs to be created LD IMPORTANT In GFI MailEssentials Spam Actions select the Tag the email with specific text option only If you select any other action the emails detected as spam will not reach the mailbox of the user and therefore the configured transport rules will not be applicable To create a Transport Rule in Exchange 2007 2010 1 Launch the Microsoft Exchange Management Console 2 Navigate to Microsoft Exchange gt Organization Configuration gt Hub Transport and select the Transport Rules node 3 Click New Transport Rule 4 Type a name for the new rule example GFI MailEssentials SPAM and click Next 5 In the Conditions area select When the Subject field contains specific words 6 In the Edit rule area click Specific Words to enter the words used for tagging Type the tag specified in the spam actions of each spam filter example SPAM and click Add Click OK when all words are added and click Next 7 In the Actions area select Set the spam confidence level to value 8 In the Edit rule area click O and set the confidence level to 9 Click OK and click Next 9 Optional Set any exceptions to this transport rule and click Next 10 Click New to create the new Transport Rule note Ensure that the Junk E Mail folder is enabled for the users mailboxes The transport rule created will now forward all emails which contain the GFI MailEssentials tag to the users
173. from the GFI MailEssentials machine to http update gfi com on port 80 For more information refer to http go gfi com pageid ME_AutoUpdatesFail Also check Proxy Server if applicable Ensure that the GFI MailEssentials version and build is identical across both source and target installations For more information how to solve this issue refer to http go gfi com pageid ME_ExpImpBuild 13 Troubleshooting and support 260 Remote commands do not work Processing of emails is very slow Older data not available in database when using Microsoft Access The Quarantine interface shows error D10 Cannot access the Quarantine Store database Use a database repair tool such as esentutl exe to repair the database Error when receiving emails Body type not supported by Remote Host Legitimate emails are moved to the failedmails folder Do need to upgrade my license key when upgrading to a new version Where is the online version of this manual GFI MailEssentials Refer to http go gfi com pageid ME_RemoteCommands This may occur when there are DNS problems in the network If DNS is not working correctly the DNS lookups made by some anti spam filters in GFI MailEssentials will timeout For more information refer to http go gfi com pageid ME_ProcessingSlow When reports mdb database exceeds 1 7 GB the database is automatically renamed to reports_ lt date gt mdb and a new reports mdb database is
174. g a proxy server For more information refer to Proxy settings page 221 4 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 5 Click Apply note GFI MailEssentials also provides a Bayesian Analysis wizard that enables you to train the Bayesian Analysis filter from a machine other than where GFI MailEssentials is installed For more information refer to Training the Bayesian Analysis filter page 266 7 1 13 Whitelist note Whitelist affects only Anti Spam filters and not email security and content filtering The Whitelist contains lists of criteria that identify legitimate email Emails that match these criteria are not scanned by anti spam filters and are always delivered to the recipient Emails can be whitelisted using the following criteria Sender s email address email domain or IP address Senders to whom an email was previously sent Auto whitelist Recipient exclude local email addresses from having emails filtered Keywords in email body or subject The whitelist and autowhitelist features are enabled by default dy Important notes Using the autowhitelist feature is highly recommended since this eliminates a high percentage of false positives In Keyword Whitelist it is recommended to add terms that spammers do not use and terms that relate to your nature of business
175. g on the rule and pressing the F2 key GFI MailEssentials 10 Email Management 218 11 General Settings Topics in this chapter 11 1 Administrator email address ooooccccccccccccc conoces 219 11 2 Enabling Disabling scanning modules 22 0000 c eee ce cece cece eee cece eceeeeeeeeeeeeeeeeees 219 153 PROXY SOUUINGS 3 2 50 22 52 tio 2 tote lat dene alist es 2 oa eee so ak Sac eee che eee 221 11 4 Local domains 220 2 0 2000 e eee nee Donnan 222 11 5 Managing local Users 0022200000 e cece eee cece eee eee eeeeeeeeeececeeeeeeeeeeeeeees 222 11 6 SMTP Virtual Server bindings 000000 2c ccc cece ccc cece cece cece eee c ec eee cece eeeeeeeeeeeeeereeeees 223 11 7 Version information ns 224 11 8 Patch Checking occ e eee cece cece cece cence eeeeeeeeeeeeeeeeereeeeees 225 11 9 Access Control ns 225 11 1 Administrator email address GFI MailEssentials sends important notifications to the administrator via email To set up the administrator s email address 1 From the GFI MailEssentials Configuration navigate to General Settings gt Settings and select the General tab Administrator email Enter the administrator s email address in the field below Notifications sent to the administrator will be sent to this email address Administrator Email Administrator mydomain com NOTE GFI MailEssentials will communicate this email address to the GFI servers GFI will only use this email address to sen
176. g other things a Physical Disk cluster resource All cluster nodes should be turned off except the node where GFI MailEssentials will first be installed Start the installation process and ensure that All files are installed on the shared hard drive You are installing on the machine s Default Website On completion start default website using IIS Manager Go to Control Panel gt Administrative Tools gt Cluster Administrator and create a new resource group Right click Groups gt New gt Group Key in GFI MailEssentials asthe name and Services for GFI MailEssentials as the description Click Next Move all available nodes to Preferred Owners and click Finish Right click GFI MailEssentials gt New gt Resource Set the name as GFI List Server Set Resource Type to Generic Service and click Next Set all available nodes to possible owners and click Next Click Next Set service name to listserv and click next GFI MailEssentials 16 Appendix 3 Microsoft Exchange 2003 Clusters 278 12 Click Finish 13 Repeat steps 7 to 12 with the following details ame Service Name GFI MailEssentials AntiSpam Attendant gfiasmlhost GFI MailEssentials AS Scan Engine gfiscans GFI MailEssentials Autoupdater msecavupdate GFI MailEssentials AV Scan Engine gfiscanm GFI MailEssentials EmailSecurity Attendant msecmlhost GFI MailEssentials Enterprise Transfer gfimetrxsvc GFI MailEssentials Legacy Atten
177. gerprints email reputation and content analysis Options J Enable SpamRazer engine Information about blocking descriptions returned by SpamRazer can be obtained from the following KB article http www gfi com link entry aspx page skynet amp id KBIDO01 896 J Enable SpamRazer SPF Recommended Enables SpamRazer to perform a Sender Policy Framework check as part of its checks For more information refer to http go gfi com pageid ME_SPFfilter Licensing SpamRazer Licensing Status Licensed Screenshot 55 SpamRazer Properties 2 From the General tab perform any of the following actions Enable SpamRazer Enable or disable SpamRazer engine Enable SpamRazer SPF Enable or disable Sender Policy Framework It is recommended to enable this option and to Recommended have this filter running after to the Email Whitelist GFI MailEssentials 7 Anti Spam 103 General Updates Q Automatic SpamRazer Updates Automatic update options Configure the automatic update options V Automatically check for updates Update interval for spam detection rules minutes min 5min max 30min Update interval for SpamRazer engine hours min 1hr max 24hr Update options Enable email notifications upon successful updates V Enable email notifications upon failed updates Last attempt 06 06 2012 14 10 39 Last attempt res
178. ges for typical phishing keywords Keywords Edit keywords Keyword list Current keywords Specify file from which to import keywords Screenshot 57 Anti Phishing options Poros jo mer 2 From the General tab select unselect Check mail messages for URI s to known phishing sites option to enable disable Anti Phishing 3 From the Keywords tab select any of the following options option Description Check URI s in mail messages for Enable disable checks for typical phishing keywords typical phishing keywords Add Enables adding keywords to Phishing filter Key in a keyword and click Add to add a keyword to the Anti Phishing filter Update Enables updating selected keywords Select a keyword from the Current Keywords list make any changes to keyword in Edit Keywords field and click Update Remove Enables removing selected keywords from list Select a keyword from the Current Keywords list and click Remove Export Exports current list to an XML format file Browse Enables importing of a previously exported keyword list Click Browse select a previously exported keyword file and click Import 4 From the Updates tab select any of the following options GFI MailEssentials 7 Anti Spam 106 Foption Description Automatically check for Configure GFI MailEssentials to automatically check for and download any Anti Phishing updates updates Specify the time interval in minu
179. gramming Interface A messaging architecture and a Component Object Model based API for Microsoft Exchange Microsoft Data Access Components A Microsoft technology that gives developers a homogeneous and consistent way of developing software that can access almost any data store Microsoft Message Queuing Services A message queue implementation for Windows Server operating systems MIME See Multipurpose Internet Mail Extensions MSMQ See Microsoft Message Queuing Services Multipurpose Internet Mail Extensions A standard that extends the format of e mail to support text other than ASCII non text attachments message bodies with multiple parts and header information in non ASCII character sets NDR See Non Delivery Report Non Delivery Report An automated electronic mail message sent to the sender on an email delivery problem GFI MailEssentials 17 Glossary 283 Perimeter server gateway The host in a LAN that is directly connected to an external network In GFI MailEssentials perimeter gateway refers to the email servers within the company that first receive email from external domains PGP encryption A public key cryptosystem often used to encrypt emails Phishing The process of acquiring sensitive personal information with the aim of defrauding individuals typically through the use of fake communications POP 2Exchange A system that collects email messages from POP3 mailboxes and routes them to mail server POP3
180. h folders that enable you to access quarantined emails according to specific time periods or by a specific quarantined email type To use the default search folders 1 Go to Quarantine node GFI MailEssentials 9 Quarantine 185 tk Use this page to search for quarantined emails Search for All Emails General Date Any date time v Search by sender AAA Search by recipient AAA Search for text in subject A Default Search Folders Search Folder Name Malware and Content Spam Today 3 0 Yesterday 405 1326 This Week 408 1326 All Malware and Content Items 3617 N A All Spam Items N A 10010 Custom Search Folders Search Folder Name Malware and Content Spam Auto purging delete after 2 days in quar 3617 10010 Disabled Screenshot 100 Default search folders 2 Select a search folder from the Default Search Folders area or from a node beneath Quarantine node to access the search folder GFI MailEssentials will automatically search for and display all quarantined emails that satisfy the default search folder search criteria Available default search folders are Time based Today e Yesterday This week Category based GFI MailEssentials 9 Quarantine 186 e All Malware and Content Items All Spam Items note Use the search results to review quarantined emails You can approve false positives for delivery to recipients For more inform
181. hat is emails are filtered while they are being received SMTP level filtering terminates the email s connection and therefore stops the download of the full email economizing on bandwidth and processing resources In this case the connection is terminated immediately and emails are not required to go through any other anti spam filters This filter is enabled by default on installing GFI MailEssentials in an Active Directory Environment Directory Harvesting is set up in two stages as follows Stage 1 Configuring Directory Harvesting properties Stage 2 Selecting if Directory Harvesting should be done during the SMTP transmission Stage 1 Configuring Directory Harvesting properties 1 Go to Anti Spam gt Anti Spam Filters gt Directory Harvesting GFI MailEssentials 7 Anti Spam 107 General This plug in checks if the SMTP recipients of incoming mail are real users or the result of a directory harvesting attack V Enable directory harvesting protection Lookup options Use native Active Directory lookups 9 Use LDAP lookups LDAP Settings Server esem AR gronsnnos m Y Anonymous bind Update DN list ir Block if non existent recipients equal or exceed 1 Email address test Email address A A Screenshot 58 Directory Harvesting page 2 Enable Disable Directory Harvesting and select the lookup met
182. he list 3 To add email users user groups and or public folders to the list click Add User Lookups La Configure Users Check Names E Name Email Address Email Aliases o E A Bob Jones bjones tcdomainb com No other aliases Screenshot 90 Add users to a Content Filtering rule 4 In the User Lookups window specify the name of the email user user group or public folder that you wish to add to the list and click Check Names Matching users groups or public folders are listed underneath note You do not need to input the full name of the users groups or public folder It is enough to enter part of the name GFI MailEssentials will list all the names that contain the specified characters For example if you input sco GFI MailEssentials will return names such as Scott Adams and Freeman Prescott if they are available 5 Select the check box next to the name s that you want to add to the list and click OK note To remove entries from the list select the user user group public folder you want to remove and click Remove 6 Repeat steps 3 to 5 to add all the required users to the list 7 Click Apply 8 2 2 Enabling disabling rules To enable or disable attachment filtering rules 1 Go to Content Filtering gt Attachment Filtering 2 From the Attachment Filtering page select the checkbox of the rule s to enable or disable 3 Click Enable Selected or Disable Selected accordingly
183. he computer to monitor 5 From the list of available counters expand MSExchangelS 6 Select any Virus Scan counter you need to add For more information refer to Performance monitor counters page 258 7 Click Add 8 Repeat steps 6 and 7 for each process to monitor 9 Click Ok to apply changes The counters of added processes are now displayed in the Performance Monitor GFI MailEssentials 12 Miscellaneous topics 257 4 Reliability and Performance Monitor File Action view Favorites Window Help e AmE ma m Reliability and Performance E D Monitoring Tools ES Performance Monitor E Reliability Monitor Data Collector Sets Reports 8 E IA PX 20 Mu 11 44 25 AM E H ne 11 43 45 AM 11 44 24 AM Last 164 000 Average 164 000 Minimum 164 000 Maximum 164 000 Duration 1 40 11 43 15 AM pe leor seale counter ista paront object Computer Processor Time _Total Processor WWINSERYB MSExchangelS Y WINSERVB MSExchangelS hangelS UWINSERVB Virus Scan Files Cleaned sec alee Screenshot 150 Monitoring Virus Scan Files Scanned in Windows Server 2008 Performance Monitor 12 12 3 Performance monitor counters The following VSAPI Performance Monitor counters are available Virus Scan Messages Processed Virus Scan Messages Processed sec Virus Scan Messages Cleaned Virus Scan Messages Cleaned sec Virus Scan Messages Qua
184. he dialog box browse to lt GFI MailEssentials installation path gt GFI MailEssentials AntiVirus Kaspersky and choose kavss exe 7 Click Apply and OK to apply the changes 8 Restart the GFI MailEssentials Autoupdater service and the GFI MailEssentials AV Scan Engine services 3 5 2 Test your installation After configuring all post install actions GFI MailEssentials is ready to start protecting and filtering your mail system from malicious and spam emails Ensure that GFI MailEssentials blocks unwanted emails To do this send inbound and outbound test emails that are purposely composed in such a way that they are blocked by GFI MailEssentials Step 1 Create a Content Filtering rule 1 Launch the GFI MailEssentials console 2 Go to GFI MailEssentials gt Content Filtering gt Keyword Filtering node 3 Click Add Rule Apply General Body Subject Actions Users Folders gy Content Filtering Rule name Provide a friendly name for this rule Email checking Select to which emails this rule applies V Inbound emails Y Outbound emails JV Internal emails PGP Encryption This rule can be set to block any PGP encrypted mail Enable or disable this option below Block PGP encrypted emails Screenshot 8 Creating a test rule on Keyword filtering 4 In Rule name type Test Rule GFI MailEssentials 3 Installation 43 5 From the Subject tab select Block emails if content is found matching these condi
185. he files found in this folder i GFI MailEssentials Configuration Export Import Tool Copying C MailEssentials Settings config mdb gt C Program Files GFI MailEss entials config mdb File exists overwritten E Copying C MailEssentials Settings autowhitelist mdb gt C Program Files GFIN MailEssentials autowhitelist mdb File exists overwritten Copying C MailEssentials Settings weights bsp gt C Program Files GFI MailEs sentials Data weights bsp File exists overwritten Copying C MailEssentials Settings userlist mdb gt C Program Files GFI MailE ssentials userlist mdb File exists overwritten Copying C MailEssentials Settings reports mdbl gt C Program Files GFI MailEs sentials data reports mdb File exists overwritten Importing Done Validating lidating Anti spam Action paths lidating Anti spam Action paths Validating Done one press lt Enter gt to continue Screenshot 145 Importing settings via command line 4 Restart the services stopped in step 1 note Some imported settings may not be appropriate for the installation of GFI MailEssentials may need to be re configured This is possible for example DNS settings domains list and perimeter servers are different from the server from which settings were exported Click Yes to launch the GFI MailEssentials Post Installation wizard to reconfigure important settings Fo
186. he newsletter 2 2 20 2 0 cccceccccceeccceeccceecccceeecceeeteceeeres 214 Enable or disable email monitoring 2 00 ccceecccceeccccececceecccceeccccecceceeeecees 215 Add Mail Monitoring rule 0 2 2 2 cece c cece cee cccccceeeccccccccececcccceceeteeccceeeeteeeeace 216 Configuring email Monitoring 2 2 2 c cee cece ccccceeecccccceeeeeccccceceeececccceees 216 Creating an exception AN 217 Specifying the administrator s email address 0 c cece cece cece cece cece eee eeeeeeeees 219 Scanning Manager 2 2 oo e ee cece cece cece eeecceencecccccucceecucceccecceceeceeceeeeeeeees 220 Updates server proxy settings 20 2 2 cece cece cccccececcccccccececccccceeeeececcereeeeecs 221 Local Domains list 0 000 000 cece cece cee beac ence cnn nn cnn cn nnnnnannns 222 Version Information Page 22 2 0 e cc ceccc cee ccccccceceecccccccececcccceceeeesccceeeeteeeeace 224 Checking for product patches 0 0 0 cece cece cee ccccccccceecccccceeeeeeccccecceeceeccceees 225 Access control settingS 2 00 0 oo cece cece cece eee cccccceceecccccccececcccccceteeccccceeeeeececeees 226 GFI MailEssentials Switchboard Ul Mode 00 c eee cece cece eee cece eee ee eee ennnen 228 IIS Security ACL tab 2 2 0 eee cece ccc cece cece cece eceeceeeeeeeeenteneeeencneeeeeseeeeeees 230 IIS Security Authentication tab 2 20 00 o oo cece ccc cee ee eee ee eee e cece eee eeeeeees 231 Enabling Failed emails notification
187. helps in keeping up with the latest techniques used by spammers in using attachments to send spam Identifies the personalized spam email where spammers frequently include the first part of the recipient email address in the subject 3 From the Language tab select Block mail that use these languages character sets to enable language detection GFI MailEssentials 7 Anti Spam 123 Actions General Languages E OA Configures the Language Settings Da Languages Block mail that use these languages character sets Block the list below Block all except the list below Languages Screenshot 67 Language Detection 4 Select Block the list below to select the languages to block or Block all except the list below to block all languages except the ones selected 5 Select the languages to block allow from the Languages area 6 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 7 Click Apply 7 1 11 Spam Keyword Checking This filter enables the identification of Spam based on keywords in the email being received This filter is NOT enabled by default on installing GFI MailEssentials note This filter only checks the content of the email for text that identifies the email as Spam For comprehensive content filtering of email for example to block Racial content or
188. hen a keyword is found The users to which a rule applies To configure content rules navigate to Content Filtering gt Keyword Filtering This page allows you to view create enable disable or delete rules 8 1 1 Creating a Keyword Filtering rule 8 1 2 Enabling disabling Rules 8 1 3 Removing content filtering rules 8 1 4 Modifying an existing rule GFI MailEssentials 8 Content Filtering 156 8 1 5 Changing rule priority 0 0000000 c cece cece cece eee E E E AA EN EnaA 162 8 1 1 Creating a Keyword Filtering rule To create a Keyword filtering rule follow the steps listed below Step 1 Configuring basic rule setting Step 2 Configuring terms to block Step 3 Configuring the actions to take on detected emails Step 4 Specifying the users to whom to apply this rule Step 1 Configuring basic rule settings 1 Goto Content Filtering gt Keyword Filtering and select Add Rule 2 Specify a name for the rule in the Rule name text box 3 Select whether to scan inbound outbound and or internal emails option Descriptio O Check Inbound emails Select this option to scan incoming emails Check Outbound Select this option to scan outgoing emails emails Check Internal emails Select this option to scan internal emails note This option is only available when GFI MailEssentials is installed on the Microsoft Exchange server 4 To block emails encrypted using PGP technology select Block P
189. hod to use Enable Enable Disable Directory Harvesting directory harvesting protection Use native Select option if GFI MailEssentials is installed in Active Directory Active Directory O NOTE lookups When GFI MailEssentials is behind a firewall the Directory Harvesting feature might not be able to connect directly to the internal Active Directory because of Firewall settings Use LDAP lookups to connect to the internal Active Directory of your network and ensure to enable default port 389 636 on your Firewall GFI MailEssentials 7 Anti Spam 108 Foption Description Use Select to configure your LDAP settings if GFI MailEssentials is installed in SMTP mode If your LDAP LDAP lookups server requires authentication unmark the Anonymous bind option and enter the authentication details that will be used by this feature O note Specify authentication credentials using Domain User format for example master domain administrator Y NOTE In an Active Directory the LDAP server is typically the Domain Controller 3 In Block if non existent recipients equal or exceed specify the number of nonexistent recipients that will qualify the email as spam Emails will be blocked by Directory Harvesting if all the recipients of an email are invalid or if the number of invalid recipients in an email equals or exceeds the limit specified note Avoid false positives by configuring a reasonable amount in the Block if non existen
190. hout triggering a dial up connection Username amp Password Enter credentials used to logon to your ISP GFI MailEssentials 12 Miscellaneous topics 237 Process every minutes Enter the interval at which GFI MailEssentials must connect to POP3 mailbox Dialup Scheduler xi Specify weekly dialing hours Dial allowed only at the following hours of the week E a 06h 03h 12h 15h 18h 21h 24h Add ld dd dd dl dd dd dedos ep a el MAMMAM vivivivivlvlv v v v1 ii rvii Mvi vivix viv yji vivi vivix Screenshot 140 Configuring when to pick up email 5 Click Schedule and specify the hours when GFI MailEssentials should dial up to pick up email A check mark indicates that GFI MailEssentials will dial out A cross indicates that GFI MailEssentials will not dial out at this hour 6 Click OK 12 6 Moving spam email to user s mailbox folders When GFI MailEssentials is installed on the Microsoft Exchange Server spam emails can be saved in a user s mailbox folder For more information refer to Spam Actions What to do with spam emails page 135 If GFI MailEssentials is NOT installed on the Microsoft Exchange Server spam emails cannot be routed to a specific user s mailbox folder through the Spam Actions Emails can still however be routed to the user s mailbox as described below 12 6 1 Microsoft Exchange Server 2003 GFI MailEssentials includes a Rules Manager utility that automatically m
191. i spam filters such as IP DNS Blocklist URI DNS Blocklist and SpamRazer perform domain lookups when filtering spam 1 From the GFI MailEssentials Configuration go to Anti Spam gt Anti Spam Settings GFI MailEssentials 7 Anti Spam 144 DNS Server Public Folder Scanning Remote Commands Anti spam logging Global Actions Perimeter SMTP Servers Specify the DNS server to be used for domain lookups DNS Settings Use the DNS server configured for this computer to use 5 Use the following DNS server Test DNS Server Screenshot 81 DNS server settings 1 From the DNS Server tab configure Use the DNS server configured for Select this option to use the same DNS server that is used by the operating this computer to use system where GFI MailEssentials is installed Use the following DNS server Select this option to specify a DNS server that is different than the one used by the local machine 2 Click Test DNS Server to test connectivity with the specified DNS server If unsuccessful specify another DNS server 3 Click Apply 7 5 4 Remote Commands Remote commands facilitate adding domains or email addresses to the Email Blocklist Whitelist as well as update the Bayesian filter with spam or ham valid emails Remote commands work by sending an email to GFI MailEssentials Addressing an email to rcommands mailessentials com configurable will have GFI MailEssentials recognize the email as containi
192. iable V Generate tracking number in subject IV Include email sent OK Cancel Apply Help Screenshot 115 Auto reply properties GFI MailEssentials 10 Email Management 206 Check and subject contains checkbox to enable auto replies for emails containing specific text in the subject field In the Auto Reply from field specify an email address in case where an auto reply is required from a different email address other than the email address to which the inbound email was addressed to In the Auto Reply subject field specify the subject of the auto reply email In Auto Reply text specify the text to display in the auto reply email note Import auto reply text from a text file via the Import button Insert Yariable xi From Email Field From Name Field Subject Field To Email Field To Name Field x Tanala Alkana Cancel Screenshot 116 Variables dialog 8 Click Variable to personalize auto replies using variables Select variable field to insert and click OK Available variables are Date Field Inserts the email sent date From Email Field Insert sender email address From Name Field Inserts the display name of the sender Subject Field Inserts email subject To Email Field Inserts the recipient s email address To Name Field Inserts the recipient s display name Tracking Number Inserts tracking number if generated 9 Click Add and select any attach
193. ic Folder Scanning For more information refer to Anti Spam page 101 Content Describes how to configure engines that scan email content Filtering For more information refer to Content Filtering page 156 Quarantine Describes how administer and use the GFI MailEssentials Quarantine For more information refer to Quarantine page 180 GFI MailEssentials 1 Introduction 14 Email How to use the tools in the Email Management Tools console Management gt gt gt Disclaimers Auto replies List server Email Monitoring For more information refer to Email Management page 201 O NOTE From the Email Management console you can also access the Pop2Exchange feature For more information refer to POP2Exchange Download emails from POP3 server page 235 General Describes how to customize general settings for your environment Settings For more information refer to General Settings page 219 Miscellaneous Explains various functions and tools that can be used to manage GFI MailEssentials For more information refer to Miscellaneous topics page 227 Troubleshooting This chapter describes how to resolve common issues encountered when using GFI MailEssentials For more information refer to Troubleshooting and support page 260 1 2 Terms and conventions used in this manual y Additional information and references essential for the operation of GFI MailEssentials y Important notifications and cautions
194. ic URL 222 0200002 e eee eeceee ee eeeee ee ee eee 198 9 1 Important Notes 1 To quarantine spam or malicious emails change the filters and engines actions to Quarantine email 2 The Quarantine Store requires disk space to retain the organization s spam email or malware for a number of days The amount of disk space required depends on The quantity received How long it is retained 3 On average 100 000 spam or malware emails of 5 KB each will require approximately 600 MB of disk space to store the email and its metadata 4 If the free disk space where the Quarantine Store is saved is 512 MB or less GFI MailEssentials stops quarantining spam and malware it is instead tagged and delivered to recipients mailboxes until free disk space increases to more than 512 MB This ensures that the disk will not run out of space 9 2 Searching the quarantine The Quarantine Store is accessible from the GFI MailEssentials interface and allows management of quarantined emails To access the GFI MailEssentials Quarantine Store go to GFI MailEssentials gt Quarantine There are various ways how to search for content in the GFI MailEssentials Quarantine Searching though quarantined Malware and Spam Searching through Malware emails only GFI MailEssentials 9 Quarantine 180 Search through Spam emails only Search through both Malware and Spam 1 Go to GFI MailEssentials gt Quarantine Search for
195. ic folders specified in the list 3 To add email users user groups and or public folders to the list click Add User Lookups l amp s Configure Users Check Names Name Email Address Email Aliases 5 v Ss Bob Jones bjones tcdomainb com No other aliases Screenshot 86 Add users to a Content Filtering rule 4 In the User Lookups window specify the name of the email user user group or public folder that you wish to add to the list and click Check Names Matching users groups or public folders are listed underneath GFI MailEssentials 8 Content Filtering 161 note You do not need to input the full name of the users groups or public folder It is enough to enter part of the name GFI MailEssentials will list all the names that contain the specified characters For example if you input sco GFI MailEssentials will return names such as Scott Adams and Freeman Prescott if they are available 5 Select the check box next to the name s that you want to add to the list and click OK note To remove entries from the list select the user user group public folder you want to remove and click Remove 6 Repeat steps 3 to 5 to add all the required users to the list 7 Click Apply 8 1 2 Enabling disabling Rules To enable disable content filtering rules 1 Go to Content Filtering gt Keyword Filtering 2 From the Content Filtering page select the checkbox of the rule s
196. ic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 34 Virus scanning engine updates 9 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 10 From Downloading option list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates and available for this engine download 11 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 12 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the e
197. ick Close The counters of added processes are now displayed in the Performance Monitor 12 12 2 Performance counter in Windows 2008 Server note In a Microsoft Exchange Server 2007 2010 environment the VSAPI performance monitor counters are only available on machines with the Mailbox Server Role installed To add and view the performance monitor counter in Windows 2008 Server follow these steps 1 Go to Start gt Control Panel gt Administrative Tools gt Reliability and Performance Monitor 2 In the monitor dialog expand Monitoring Tools and select Performance Monitor 3 From the viewing pane click Add to load the Add Counters dialog GFI MailEssentials 12 Miscellaneous topics 256 Add Counters Ed Available counters Added counters Select counters from computer Er lt Local computer gt X Browse MSExchangeIS Virus Scan Files Cleaned sec Virus Scan Bytes Scanned Virus Scan Files Quarantined Virus Scan Files Cleaned Virus Scan Files Quarantined sec Virus Scan Files Scanned Virus Scan Files Scanned sec Virus Scan Folders Scanned in Background Mire Sean Mace snec Clasned xl Instances of selected object J Show description Help Cancel Description Total number of separate files processed by virus scanner a Screenshot 149 Adding VSAPI performance monitor counters in Windows 2008 Server 4 From the Select counters from computer dropdown list select t
198. ield to match for the emails to be whitelisted Y NOTE For more information about the difference between SMTP and MIME refer to http go gfi com pageid ME_DifferenceSMTPMIME 3 Optional In Description add a description to the entry 4 Click Add Remove whitelist 1 Select one or more whitelist entries from the Whitelist list entries 2 Click Remove 1 Search for a In Search key in the details of the whitelist entry to search for hitelist ent CO 2 Click Search to display list of matching terms Show Statistics Use the Show Statistics button to view the total number of emails blocked per whitelist entry Import whitelist 1 Specify the full path and filename of the file to use for importing the previously exported entries data 2 Click Import to import entries Export whitelist Click Export to export current list of whitelist entry to an XML file entries 3 Select the Auto Whitelist tab to configure the following options option f peseription Populate Auto If selected destination email addresses of outbound emails are automatically added to the Whitelist auto whitelist automatically Enable Email Auto Select this option to enable auto whitelist Senders of incoming emails are matched against Whitelist the auto whitelist If the sender is present in the list the email is forwarded directly to the recipient s Inbox Maximum entries Specify the number entries allowed in Auto Whitelist When the limit specified is
199. ify recipients 1 Use the search features described in the previous sections to return a list of quarantined emails 2 Click on an email to view its details 3 Click Delete and Notify 9 5 Quarantine RSS Feeds RSS Really Simple Syndication is a protocol used to distribute frequently updatable content or feeds for example news items with its subscribers An RSS Feed Reader is required by subscribers to view RSS feeds RSS feeds usually include a summary of the content and a link to view the full article To facilitate the monitoring of quarantined emails RSS feeds can be used The GFI MailEssentials Quarantine RSS feed displays quarantined emails for review and enables users to approve or delete quarantined emails GFI MailEssentials 9 Quarantine 190 note GFI MailEssentials Quarantine RSS feeds can be used on most RSS Feed Readers For a list of freely available RSS Feed Readers that were tested with GFI MailEssentials Quarantine RSS feeds refer to http kbase gfi com showarticle asp id KBIDOO2661 Topics in this chapter 9 5 1 Enabling Quarantine RSS Feeds 200 2 0 0 e cence eee e eee eceeeeneeeeeneenees 191 9 5 2 Subscribing to Quarantine RSS feeds 01 eee ee ccc c cece ecccccccececcccecceeececcceeeeeeceeceees 192 9 5 3 Securing access to the GFI MailEssentials Quarantine RSS feeds 0 22 e eee eee cece cece cece eee 192 9 5 1 Enabling Quarantine RSS Feeds 1 Navigate to GFI MailEssentials gt
200. ilSecurity Minimum version to upgrade from GFI MailSecurity 10 1 with all Service Releases installed If upgrading an installation with a previous version of GFI MailEssentials GFI MailEssentials is installed with Anti Spam and Anti Phishing features fully licensed and the Anti Virus and Anti Malware on a 30 day trial period Likewise if upgrading an installation where only GFI MailSecurity is installed only the Anti Virus and Anti Malware features are fully licensed while the Anti Spam and Anti Phishing features are on a 30 day trial period Installations where both GFI MailEssentials and GFI MailSecurity are installed are upgraded to have both Anti Spam Anti Phishing and Anti Virus Anti Malware features fully licensed For more information on GFI MailEssentials licensing refer to http g0 sfi com pageid ME_ adminManualEN LD IMPORTANT Before upgrading to the latest version of GFI MailEssentials ensure your system meets the minimum system requirements For more information refer to System requirements page 24 3 4 1 Upgrade Procedure LD IMPORTANT Upgrade is not reversible you cannot downgrade to the previous version you had installed Select the configuration option that best describes your setup from the list below Previous installation on SMTP Server Microsoft Exchange Server 2003 Previous installation on Microsoft Exchange Server 2007 2010 Updating to a newer version of GFI MailEssentials Pre
201. in for example domain com or an email sub domain for example domain com and click Add note To remove an entry from the HTML Sanitizer whitelist select an entry and click Remove 3 Click Apply 6 5 3 HTML Santizer DomainWP Exclusions The HTML Santizer DomainWP Exclusions feature enables administrators to specify IP addresses or domains to exclude from HTML Sanitizer This will not simply use an IP address list it can also support domain addresses which are then resolved at runtime so that all the IP addresses for the domain in question are obtained This is done in two ways 1 By default the feature queries the MX records of the domain being processed 2 Optionally you can choose to have the SPF record of the domain queried If the domain doesn t have an SPF record the SPF part is ignored and only the MX records are used If the IP address from where the email originated the one which sent to the perimeter server is an IP listed in the Domains IPs exclusions tab or resolved from a domain in the same list then the email is not processed by HTML Sanitizer This is a sort of IP Whitelist but with the additional benefit of GFI MailEssentials 6 Email Security 99 specifying domains and have the feature resolve the domains MX records and optionally the SPF record to get the IP addresses To manage domains IP exclusions in the HTML Sanitizer Whitelist 1 Navigate to Email Security gt HTML Sanitizer
202. in the sender field Select user by a company or domain when clicking on the sender button and enter username or user email address in domain the recipient field New Inbound Mail Monitoring Rule Properties Mail Monitoring Exceptions Q Specify sender recipient emails to be excluded from mail monitoring Except if sender is ETT S Aa Remove Except if recipient is Add Administrator tcedomainb com Remove DK Cancel Apply Help Screenshot 124 Creating an exception GFI MailEssentials 10 Email Management 217 4 Select the Exceptions tab to add senders or recipients who will be excluded from the new rule The available options are Foption f peseription Except if sender is Excludes the specified sender from the list Except if recipient is Excludes the specified recipient from the list note When specifying exceptions for inbound monitoring rules the Sender list contains non local email addresses and the Recipient list addresses are all local When specifying exceptions for an outbound monitoring rule the Sender list contains local email addresses whilst the Recipient list contains only non local email addresses NOTE Both exception lists apply and all senders listed in the sender exception list and all recipients listed in the recipient list will not be monitored 5 Click OK to finalize settings note The new email monitoring rule can be renamed by clickin
203. ine Quarantined Malware Emails 3617 Y EmailSecurity Attendant Y AntiSpam Attendant Malware Quarantine Size 597 04 MB Y Autoupdater Y Legacy Attendant Quarantined Spam Emails 10010 Y LocalMode Host Y GFI List Server Spam Quarantine Size 136 04 MB Y GFI POP2Exchange Y Enterprise Transfer Free Disk Space 105 77 GB Y Email Statistics View charts for Last 7 Days y Email Scanning Timeline Scan Statistics 25000 15000 10000 4 5000 AE pz ABW az AEM ZZ ARN AE ARN ARN V O Processed 42376 Y O Legitimate 33318 Y Malware 1276 Y Content Filtering 566 Y Spam 7216 4 email s were not processed successfully Click here for more information on how to reprocess such emails Screenshot 10 The GFI MailEssentials Dashboard To open the Dashboard go to GFI MailEssentials gt Dashboard This page displays statistics status of services and a graphical presentation of email activity More details on these sections are provided below GFI MailEssentials 4 Monitoring status 46 Services Y GFI MailEssentials Services AV Scan Engine AS Scan Engine EmailSecurity Attendant AntiSpam Attendant Autoupdater Legacy Attendant LocalMode Host GFI List Server SBS SS S amp S SS GFI POP2Exchange Enterprise Transfer Screenshot 11 The GFI MailEssentials Services The Services area displays the status of GFI MailEssentials services V
204. ines how often the slave server will upload its settings to the master server In the Download every field specify the download interval in hours which determines how often the slave server checks for updates on the master server and downloads them Important notes about setting the interval 2 The hourly interval for upload and download cannot be set to the same value The hourly interval can be set to any value between 1 and 240 hours It is recommended that the download interval is configured to a smaller value than the upload interval It also recommended to use the same interval for all slave servers Example Set download interval to 3 hours and upload interval to 4 hours This way downloads are more frequent than uploads Manual Upload and download the settings archive file manually To upload the settings of the slave server to the master server click Upload now To download the updated merged settings from the master server click Download now 8 Click OK 12 8 2 Exporting and importing settings manually GFI MailEssentials includes a Configuration Export Import tool to export settings from one installation and import them in another note Settings can also be imported and or exported from command line For more information refer to Export Import settings via command line page 249 Step 1 Export existing settings 1 Goto lt GFI MailEssentials installation path gt GFI MailEssentials and launch meco
205. ing if the sender IP address is authorized The Sender Policy Framework filter is based on a community based effort which requires that the senders publish the IP addresses of their mail servers in an SPF record Example If an email is sent from xyz CompanyABC com then companyABC com must publish an SPF record in order for SPF to be able to determine if the email was really sent from the companyABC com network or whether it was forged If an SPF record is not published by CompanyABC com the SPF result will be unknown For more information on SPF and how it works visit the Sender Policy Framework website at http www openspf org The SPF filter is NOT enabled by default and it is recommended to enable this option and to have this filter running prior to the Email Whitelist so to block forged senders before these are whitelisted GFI MailEssentials does not make it a requirement to publish any SPF records To publish SPF records use the SPF wizard at http www openspf org wizard html Prerequisites Before enabling the Sender Policy Framework filter on a non gateway server installation 1 Click Anti spam gt Anti Spam Settings and select Perimeter SMTP Servers tab 2 Click Detect in the Perimeter SMTP setup option to perform a DNS MX lookup and automatically define the IP address of your perimeter SMTP server Enabling the Sender Policy Framework 1 Select Anti Spam gt Anti Spam Filters gt Sender Policy Framework GFI
206. ino incompatibilities 2 0 00 0 0 cc ccc cc ccc ceccecceseeseessensessesees 269 15 1 1 Internal memos emails are not scanned coccion 269 15 1 2 GFI MailEssentials List Server will not work with Lotus Domino 269 15 2 GFI MailEssentials Installation Guide for Lotus Domino ccoo 269 15 2 1 Installing GFI MailEssentials 2 020 000 00 00 occ cece cece ccc ec ccc ceccccceceeceeseeceeeeeseees 269 15 2 2 Set up DNS Router Firewall 2 0 20 ccc ccc ce cc ceccccccceccceceeceeseeseeseess 270 15 2 3 Configuring Lotus Domino to send outbound emails through GFI MailEssentials 271 15 2 4 Lotus Domino LDAP Settings 2 002 000 0022 0 occ ccc cece cece cece cece ceeceeceeeeeeees 272 15 3 Lotus Domino Anti Spam Folder Configuration 0 2 0 0 220 202 ccccceecceccecceceeceeeees 273 15 4 GFI MailEssentials Configuration 2 2 2 2 20 20 2002 20 c cece ccc cc cccccnccecceceecceceeseeseeseeneees 276 16 Appendix 3 Microsoft Exchange 2003 Clusters 2 2 2 0 0 0 c ccc cece eccecceccecceceeceees 278 16 1 Installing GFI MailEssentials in a cluster environment 2 2 2 2cceccecceceeeees 278 16 2 Uninstalling GFI MailEssentials in a cluster enviornment 2 2 20 20ceee esses 279 1 7 GIOSSALY 2235s foe cesec ccc hoes ceca AEE eco poco Bee ee Ate eee 280 18 Index 287 Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4 Screenshot 5 Screenshot 6 Screenshot 7 Screenshot 8 S
207. ion about perimeter SMTP servers refer to http go gfi com pageid ME_PerimeterServer When using hosted email security products GFI MAX MailProtection GFI MAX MailEdge or GFI MailEssentials Online enable checkbox Emails are also filtered by For more information refer to http go gfi com pageid ME_MAXMPME Click Next GFI MailEssentials 3 Installation 38 2 GFI MailEssentials Post Installation Wizard Default anti spam action Select the default action when an email is detected as spam Select default anti spam action Move to Outlook junk email folder A Ensure that the Junk E mail folder is enabled on all Microsoft Outlook email clients Spam will not be moved to the Junk E mail folder if an email client other than Microsoft Outlook is used The selected actions will only apply to anti spam functionality Malware 1 filtering makes use of the Quarantine action by default lt Back Cancel Screenshot 7 Selecting the default anti spam action to use 6 In the Default anti spam action dialog select the default action to be taken when emails are detected as spam note This action applies to anti spam filters only Malware filters automatically quarantine blocked emails For more information refer to Email scanning and filtering engines page 19 NOTE When installing on Microsoft Exchange 2010 and the default action selected is Move to mailbox sub folder a user with impersonation rights must
208. ions GFI MailEssentials 6 Email Security 78 CA f Description Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates and available for this engine download 10 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 11 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully note An email notification is always sent when an update fails 12 To check for and download updates immediately click Download updates 13 Click Apply 6 1 4 Norman 1 Go to Email Security gt Virus Scanning Engines gt Norman GFI MailEssentials 6 Email Security 79 General N Norman AntiVirus Options Enable Gateway Scanning SMTP Y Scan Inbound SMTP Email 9 Scan Outbound SMTP Email V Scan Internal and Information Store Items Enable Sandbox Macro Checking 9 Do not check macros 1 Block all documents containing macros Norman Scanner Engine Version Information
209. ipting code and are therefore safe for viewing V Enable the HTML Sanitizer Email checking Select the emails you want the HTML Sanitizer to scan and clean I Scan Inbound SMTP Email I Scan Outbound SMTP Email Screenshot 52 HTML Sanitizer configuration page 2 Enable the HTML Sanitizer by selecting Enable the HTML Sanitizer checkbox 3 Select direction of emails Check inbound emails Scan and sanitize HTML scripts from all incoming emails Check outbound emails Scan and sanitize HTML scripts from all outgoing emails 4 Click Apply 6 5 2 HTML Sanitizer Whitelist The HTML Sanitizer Whitelist can be configured to exclude emails received from specific senders note To exclude specific IP Addresses or domains use the HTML Santizer DomainWP Exclusions feature For more information refer to HTML Sanitizer page 97 To manage senders in the HTML Sanitizer Whitelist 1 Navigate to Email Security gt HTML Sanitizer and select Whitelist tab GFI MailEssentials 6 Email Security 98 Domain IP Exclusions HTML Sanitizer Whitelist Q Whitelist This Whitelist enables you to exclude emails received from specific senders from being processed by the HTML Sanitizer Whitelist Whitelist entry examples sender domain com domain com domain com Screenshot 53 HTML Sanitizer Whitelist page 2 In Whitelist entry key in an email address an email doma
210. irectory and select Properties f Select Directory Security tab and in the Authentication and access control group click Edit g In Authenticated access group check Basic Authentication and specify Default domain and Realm of the username and password used for authentication by the slave machines note Ensure that all other checkboxes are unchecked h Click OK i Select the BITS Server Extension tab and select Allow clients to transfer data to this virtual directory j Click OK to close the virtual directory dialog properties Step 2 Configure the GFI MailEssentials master server 1 From the master server go to lt GFI MailEssentials installation path gt GFl MailEssentials AntiSpam and open mesentcfg msc GFI MailEssentials 12 Miscellaneous topics 243 2 Right click Anti Spam Synchronization Agent gt Configuration and select Properties Configuration Properties Master Stave iL gt Configure this server as a master server if it merges and distributes ih anti spam data to slave servers IV This GFI MailEssentials server is also a master server There should only be 1 master server ee aa a Oe Wait for data from the following slave servers hostnames before Sea E Delete Merge data now Screenshot 141 Configuring a master server 3 From the Master tab select This GFI MailEssentials Configuration server is also a master server and key in the full path of the fo
211. ired email For more information refer to http go gfi com pageid ME_BlockedWhitelistedSenders 1 Confirm that this feature is configured correctly For more information refer to Move spam to Exchange 2010 folder page 240 2 Refer to http go gfi com pageid ME_Autodiscoverlssues for detailed information on how to solve this issue Issue encountered Solution No disclaimers are added to outbound emails Some characters in disclaimer text are not displayed correctly Emails sent to the list server are converted to Plain Text Internal users receive a non delivery report when sending email to list server when GFI MailEssentials is installed on a Gateway machine Emails sent from certain users or sent to certain users are not monitored GFI MailEssentials Disclaimers are only added to outbound emails originating from domains protected by GFI MailEssentials Disclaimers are not added when Emails are sent from domains that are not specified in local domains list gt Emails are sent to domains that are in the local domains list as these will be considered as internal emails Ensure that all local domains are specified in the Inbound email domains dialog For more information refer to Local domains page 222 Configure Microsoft Outlook not to use automatic encoding and force GPO to use correct encoding For more information how to solve this issue refer to http go gfi com pageid ME_Outlook2003Encoding
212. is delivered to users mailbox Email Blocklist Whitelist and or Content Filtering pages take long to load or appear to hang SpamRazer updates not downloading Emails are not being greylisted Receiving spam emails from my domain GFI MailEssentials Follow the checklist below to solve this issue 1 Check that GFI MailEssentials is not disabled from scanning emails For more information refer to Disabling email processing page 252 2 Check if all required filters are enabled For more information refer to Anti Spam filters page 101 3 Check if local domains are configured correctly For more information refer to Local domains page 222 4 Check if emails are passing through GFI MailEssentials or if GFI MailEssentials is bound to the correct IIS SMTP Virtual Server 5 Check if S6TEMP location which by default is the C Windows Temp folder contains a lot of files 6 Check if the number of users using GFI MailEssentials exceeds the number of purchased licenses 7 Check if whitelist is configured correctly For more information refer to Whitelist page 130 8 Check if actions are configured correctly For more information refer to Spam Actions What to do with spam emails page 135 9 Check if Bayesian Analysis filter is configured correctly For more information refer to Bayesian Analysis page 128 For more information how to solve this issue refer to http go gfi com pageid ME_SpamCheckli
213. itimate 33318 Malware 1276 Y Content Filtering 566 O Spam 7216 4 email s were not processed successfully Click here for more information on how to reprocess such emails Screenshot 13 Dashboard charts The Charts area displays graphical information about emails processed by GFI MailEssentials Select the time period from the drop down list to display information for that period in the charts View charts for Enables you to select a period for which to view charts Available options are Last 6 hours Last 24 hours Last 48 hours Last 7 days Email scanning Shows a time graph in intervals for the time period selected The graph shows the number of timeline time graph processed legitimate malware content filtering and spam emails Scan statistics pie A graphical distribution of the total number of safe quarantined and failed emails for the time chart period selected Legend The legend shows the color used in graphs and the count of each category GFI MailEssentials 4 Monitoring status 48 4 1 2 Email processing logs Dashboard Logs The Logs show all the email scanning activity in chronological order POP2Exchange Y Filters Clear Filters Date Time Sender Recipient s Subject Scan Result View Blocked By 3 27 2012 jsmith tcdomainb com administrator tcdomainb co Test Subject Directory View Item 2 00 30 PM m Harvesting Blocked 3 27 20
214. its highest detection rate when it adapts to your email patterns How does the Bayesian spam filter work Bayesian filtering is based on the principle that most events are dependent and that the probability of an event occurring in the future can be inferred from the previous occurrences of that event note Refer to the links below for more information on the mathematical basis of Bayesian filtering http go gfi com pageid ME_BayesianParameterEstimation This same technique has been adapted by GFI MailEssentials to identify and classify spam If a snippet of text frequently occurs in spam emails but not in legitimate emails it would be reasonable to assume that this email is probably spam Creating a tailor made Bayesian word database Before Bayesian filtering is used a database with words and tokens for example sign IP addresses and domains etc must be created This can be collected from a sample of spam email and valid email referred to as ham A probability value is then assigned to each word or token this is based on calculations that account for how often such word occurs in spam as opposed to ham This is done by analyzing the users outbound email and known spam All the words and tokens in both pools of email are analyzed to generate the probability that a particular word points to the email being spam This probability is calculated as per following example If the word mortgage occurs in
215. ive that triggers this filter COI f peseription Quarantine Quarantines blocked emails Automatically Delete Deletes blocked emails note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 5 Select Send a sanitized copy of the original email to recipient s to choose whether to send a copy of the blocked email to the recipients 6 Click the Actions tab to configure further actions 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log 9 Click Apply Check corrupted archives 1 Navigate to Content Filtering gt Decompression node GFI MailEssentials 8 Content Filtering 175 2 From
216. ived on the mail server and reduce unnecessary email traffic It also provides additional fault tolerance where if the mail server is down you can still receive email since emails are queued on the GFI MailEssentials machine When installing on a separate server that is on a server that is not the mail server you must first configure that machine to act as a gateway also known as Smart host or Mail relay server This means that all inbound email must pass through GFI MailEssentials for scanning before being relayed to the mail server for distribution For outbound emails the mail server must relay all outgoing emails to the gateway machine for scanning before they are sent to destination If using a firewall a good way to deploy GFI MailEssentials in the DMZ GFI MailEssentials will act as a smart host mail relay server when installed on the perimeter network also known as DMZ demilitarized zone GFI MailEssentials Figure 3 Installing GFI MailEssentials on a separate machine on a DMZ GFI MailEssentials 2 About GFI MailEssentials 22 note If GFI MailEssentials is installed on the perimeter server you can use the anti spam filters that run at SMTP level Directory Harvesting and Greylist NOTE In Microsoft Exchange Server 2007 2010 environments mail relay servers in a DMZ can be running Microsoft Exchange Server 2007 2010 with the Edge Transport Server Role NOTE Configure the IIS SMTP service t
217. l addresses by attaching well known usernames to your domain The majority of the email addresses are non existent The Email Blocklist is a custom database of email addresses and domains from which you never want to receive emails IP DNS Blocklist checks the IP address of the sending mail server against a public list of mail servers known to send spam Stops emails that contain links to domains listed on public Spam URI Blocklists This filter uses SPF records to stop email sent from forged IP addresses by identifying if the sender IP address is authorized Checks emails received with a sender email address claiming to originate from your own domain against a list of IP addresses by GFI MailEssentials If the sender IP address is not on the list of own domain server IP addresses email is blocked The Greylist filter temporarily blocks incoming emails received from unknown senders Legitimate mail systems typically try to send the email after a few minutes spammers simply ignore such error messages The Header Checking filter analyses the email header to identify spam emails This filter enables the identification of Spam based on keywords in the email being received An anti spam filter that can be trained to accurately determine if an email is spam based on past experience The Whitelist contains lists of criteria that identify legitimate email Emails that match these criteria are not scanned by anti spam filters and are al
218. l to recipient s to choose whether to forward a copy of the blocked email to the recipients but with the malicious content removed 7 Click the Actions tab to configure further actions 8 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 9 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log 10 Click Apply Check size of uncompressed files in archives This filter allows you to block or delete emails with archives that exceed the specified physical size when uncompressed Hackers sometimes use this method in a DoS Denial of Service attack by sending an archive that can be uncompressed to a very large file that consumes hard disk space and takes a long time to analyze by content security or antivirus software To configure this filter 1 Navigate to Content Filtering gt Decompression nod
219. lEssentials installation to make use of the new settings note The servers that collaborate in the synchronization of settings must all have the same version of GFI MailEssentials note The files uploaded and downloaded by the synchronization agent are compressed to limit the traffic on the network Step 1 Configuring the Synchronization Agent virtual directory on the master server Important notes 1 Only one server can be configured as master server at any one time 2 To configure a server as a master server it must meet one of the following system specifications Microsoft Windows Server 2008 with SP1 or later and IIS 7 0 with BITS server extensions installed Refer to http go gfi com pageid ME_InstallBITS2003 Microsoft Windows Server 2003 with SP1 or later and IIS 6 0 with BITS server extension installed Refer to http go gfi com pageid ME_InstallBITS2008 3 An IIS virtual directory should be created on the master server only Virtual directory configuration In Internet Information Services IIS Manager configure a shared virtual directory on the default website of the master server as described below IIS 7 0 a Load the Internet Information Services IIS Manager console right click on the default website and select Add Virtual Directory b In the Add Virtual Directory dialog key in MES ynchAgent as an alias for the virtual directory c Specify a path where to store the contents
220. lar email direction to display data for or select All email directions inbound filtering outbound internal to display data for all directions Email address Key in an email address to display report information for that particular email address only filtering Report Specify how to group data Available options are Grouping Group by Day gt gt gt Group by Week Group by Month Group by Year 3 Click Generate to build and display the report or Save as New Custom Report to save report settings for reuse at a later time GFI MailEssentials 4 Monitoring status 54 Emails Blocked Graph Monday February 27 2012 Tuesday March 27 2012 Screenshot 19 Emails blocked graph report Report functions GFI MailEssentials User All Direction All E Total Emails A spam A Malware amp Content Filtering Use the report top toolbar to do the following functions Function Icon Description Print a Print current page E Navigate Page of 1 Save a par gt GFI MailEssentials Click to print report Click to print the page that is currently displayed Use this toolbar to navigate through report pages Select format to save report in and click Save Specify location where to save report 4 Monitoring status 55 4 2 3 Custom reports Custom reports enable you to save specific report parameters for example a report type for a specific time date period and to have it gene
221. lder configured to hold the contents of the MESynchAgent virtual directory 4 Click Add and enter the hostname of the slave server Click OK to add it to the list Repeat this step and add all other slave servers note Ensure that you configure all the machines in this list as slave servers else the synchronization agent on the master server will not merge the data note A master server can also be a slave server at the same time In this case the server will merge its own data to the ones uploaded by the other slave servers For this to work it is required to add the master server hostname to the list of slave servers as well 5 If required select a slave server from the list and click Edit or Delete to edit or delete it 6 Click OK GFI MailEssentials 12 Miscellaneous topics 244 Step 3 Configure slave servers Important notes 1 To configure a server as a slave server it must meet one of the following system specifications Microsoft Windows Server 2008 Microsoft Windows Server 2003 It is recommend that you download the BITS 2 0 client update from http go gfi com pageid ME_BITS2003Update 2 Slave servers automatically upload an archive file containing settings to the IIS virtual directory on the master server so no virtual directory should be created on slave servers Slave server configuration 1 From the slave server go to lt GFI MailEssentials installation path gt GFl MailEssentials A
222. lder scanning retrieves emails from the GFI AntiSpam public folders and add to whitelist blocklist and HAM SPAM databases The GFI Antispam public folders must be created and configured on the mail server For more information refer to Enabling Public Folder Scanning page 149 Topics in this section 7 6 1 Enabling Public Folder Scanning 0 00 0 22 c cece ccc cece cece cece cece e cece cece ceeeceeeeeeeeeeeeeees 149 7 6 2 Using Public folder scanning 0 022 c cece cece cece cece cece cece cee eee cece ceeeeeeeeceeeeeeeeees 153 7 6 1 Enabling Public Folder Scanning To enable public folders scanning follow the instructions listed in the sections below Public folder scanning setup for Microsoft Exchange Servers Configure a dedicated user account for Microsoft Exchange Server 2003 Configure a dedicated user account for Microsoft Exchange Server 2007 2010 Hiding user posts in GFI AntiSpam Folders GFI MailEssentials 7 Anti Spam 149 note You can also use GFI MailEssentials with Lotus Domino For more information refer to Appendix 2 in this guide Public folder scanning setup for Microsoft Exchange Servers 1 From the GFI MailEssentials configuration console go to Anti spam gt Anti Spam Settings Select Public Folder Scanning tab 2 Select Enable Public Folder Scanning and from Poll public folder via list select Exchange Server 2003 Select MAPI IMAP or WebDAV Exchange S
223. lete email larger than the maximum allowed size or send a message to the postmaster 8 Click OK 12 5 2 Configure dial up connection options 1 From the GFI MailEssentials server go to Start gt Programs gt GFI MailEssentials gt Email Management Tools 2 Select POP2Exchange node and double click General 3 From the Dialup tab select Receive mails by Dial Up or Dial on Demand POP2Exchange Configuration 24x POPS Dialup a Configure connection for POP3 downloading V Receive mails by Dial Up or Dial on Demand Use this Dial Up Networking profile VPN Connection y If not connected dial C Process only when already connected Dial on demand router Username bjones Password pes Process every minutes fi 0 Schedule Cancel Apply Screenshot 139 Dial up options 4 Select a dial up networking profile and configure a login name and password The following options are available Use this Dial Up Networking profile Choose the Dial up Networking profile to use If not connected dial GFI MailEssentials will only dial up if there is no connection gt Process only when already connected GFI MailEssentials will only process email if a connection already exists Dial on demand router In case of an Internet connection that is automatically established such as a dial on demand router select this option GFI MailEssentials will pick up email at the specified interval wit
224. lick Close when finished editing the HTML disclaimer 8 Import or export an HTML disclaimer in htm or html format using the Import and Export buttons 9 Specify the encoding for the HTML disclaimer if the email body s character set is not HTML Convert to Unicode Convert both email body and disclaimers to Unicode so that both are properly displayed Recommended Use HTML encoding Use to define character sets for email body and disclaimer Use character set of the Disclaimer is converted to the email body character set email body Y note If selected some disclaimer text might not display properly New Disclaimer Properties xi General HTML Plain Text Exclusions A Configure plain text disclaimer text amp character set conversion Text Disclaimer This is a plain text disclaimer P Variable Import Esport Select how disclaimer should be set if the specified disclaimer is not representable in the email body s character set Convert to unicode UTF 8 Use character set of email body Cancel Apply Help Screenshot 113 Plain text disclaimer GFI MailEssentials 10 Email Management 204 10 Select Plain Text tab and insert the text to include for use in plain text emails directly into the Text Disclaimer field 11 Optionally add variables in disclaimer by clicking Variable The variables that can be added are email fields sender name recipient email address e
225. list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates and available for this engine download 8 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 9 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully GFI MailEssentials 6 Email Security 96 note An email notification is always sent when an update fails 10 To check for and download updates immediately click Download updates 11 Click Apply 6 4 2 Enabling Disabling Email Exploits 1 Go to Email Security gt Email Exploit Engine gt Exploit List Email Exploit D Email Exploit Engine Enable Selected Disable Selected ua ID Description Date E 1 CLS ID File Extension High alert 7 11 2007 8 54 20 AM E 2 F Iframe within an HTML email Suspicious 9 1 2005 2 03 08 PM E 3 F Malformed File Extension High alert 2 15 2002 12 00 00 AM F 4 Java ActiveX Component Exploit High alert 8 31 2005 7 25 26 AM
226. ls Switchboard Ul Mode Troubleshooting Tracing Quarantine Other Specify options which aid in troubleshooting Enable Disable Email Processing When troubleshooting it is sometimes necessary to enable disable email processing without needing to uninstall the product o Enable Disable Email backup before after processing When troubleshooting it is sometimes necessary to keep a backup copy of A en MailEssentials IV Keep a copy of every email before and after email processing Backup copies of the emails will be copied to the following folders C Program Files amp 86 GFI MailEssentials Antispam SourceArchives C Program Files amp 86 GFI MailEssentials Email Security SourceArchives Screenshot 147 The GFI MailEssentials Switchboard Troubleshooting GFI MailEssentials 12 Miscellaneous topics 253 2 Select unselect Keep a copy of every email before and after email processing checkbox to store a copy of each email processed All emails are stored in the following locations lt GFI MailEssentials installation path gt GFI MailEssentials AntiSpam SourceArchives gt lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity SourceArchives note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 3 Click OK 4 In the Service Restart
227. ls per page are currently displayed Choose a number to view a maximum number of items per page 2 Click a row to access the individual email details Quarantined malware content email details Sanitize and Approve Delete and Notify Download item Item Information From administrator tcdomainb com Date 3 27 2012 1 43 50 PM To jsmith tcdomainb com Module Keyword Filtering Subject Threat test Source Gateway SMTP Attachments Quarantined item has no attachments to display Message Text Text Body Testing Body Regards Screenshot 102 Quarantined Items details From the Quarantined Items details page review the email details and perform the following actions Approve Approve email For more information refer to Approving Quarantined Emails page 189 Sanitize and Sanitize email and approve For more information refer to Approving Quarantined Emails page 189 Approve Rescan Rescans emails using current antivirus signatures which may be more up to date than the antivirus signatures that quarantined the email in the first place Delete Deletes email For more information refer to Permanently Delete Quarantined Emails page 190 Delete and Deletes email and notifies user For more information refer to Permanently Delete Quarantined Notify Emails page 190 Download Downloads quarantined email to a location you choose in eml format Item Y Warning Emails in Quarantine
228. ly 7 5 1 Log file rotation Boe te eae Stns eee een ee ee ee eee es eet ene test 143 7 5 2 Anti Spam Global Actions 200 2000 occ cece cece cece eee oaa aoaaa aaea oaaao aaan aaa 143 7 5 3 DNS Server Settings 2 2000 cece cece ccc cece cnn 144 7 5 4 Remote Commands e 145 GFI MailEssentials 7 Anti Spam 142 7 5 5 Perimeter SMTP Server Settings 7 5 1 Log file rotation Over time log files may become very large GFI MailEssentials enables log rotation where new log files are created periodically or when the log file reaches a specific size To enable log file rotation 1 Go to Anti Spam gt Anti Spam Settings DNS Server Public Folder Scanning Remote Commands Anti spam logging Global Actions Perimeter SMTP Servers En Anti spam filter log file configuration Rotation Enable log file rotation by size or time to control the size of anti spam filter log files Y Enable log file rotation by size MB 5 by time Monthly Screenshot 79 Log file rotation 2 From the Anti spam logging tab select Enable log file rotation and specify the rotation condition by size or by time 3 Provide the size or time values and click Apply 7 5 2 Anti Spam Global Actions A lot of spam is sent to email addresses that no longer exist Generally these emails are simply deleted however for troubleshooting or evaluation purposes you might want to move these emails to a folder or forw
229. m 126 3 9 In the Condition Entry area key in a keyword or a combination of keywords for this filter to block Use the AND OR AND NOT and OR NOT operators to configure specific conditions For example Key in the phrase Basketball sports GFI MailEssentials to block an email with the phrase Basketball sports Only this phrase would activate the rule not the word basketball OR sports separated by some other words Key in Basketball AND Baseball and GFI MailEssentials will block emails that have both words in the email Emails with only Basketball or only baseball will not be blocked Select Match whole words only to search specifically for whole words and avoid blocking words that are part of other words For example enabling this option would not block the word MSExchange notwithstanding the fact that the word sex is part of MSExchange Select Subject tab select Block emails if content is found matching these conditions message subject to enable Spam Keyword checking on email subject In the Condition Entry area key in a keyword or a combination of keywords for this filter to block Use the AND OR AND NOT and OR NOT operators to configure specific conditions Select Apply the keywords list to also scan senders display names to check the display name of the sender email which can contain spam keywords For example Viagra spam which often has forged send
230. m option to configure if disclaimer should be located at the top or bottom of the email GFI MailEssentials 10 Email Management 202 New Disclaimer Properties xi General HTML Plain Text Exclusions DE Configure HTML disclaimer text amp character set conversion HTML Disclaimer Click Edit HTML to insert an HTML disclaimer Edit HTML Import Export Select how disclaimer should be set if the specified disclaimer is not representable in the email body s character set Convert to unicode UTF 8 Recommended C Use HTML encoding Use character set of email body OK Cancel Apply Help Screenshot 111 HTML Disclaimer 5 To add a disclaimer in HTML format select the HTML tab Click Edit HTML to launch the HTML disclaimer editor and edit the HTML disclaimer text Edit HTML Editor Iof x Close Edit View Format Insert Click Edit HTML to insert ah HTML disclaimer Screenshot 112 HTML disclaimer editor 6 To add variables in disclaimer navigate to Insert gt Variable The variables that can be added are email fields or Active Directory fields Select the variable to add and click OK GFI MailEssentials 10 Email Management 203 note The recipient display name and email address variables will only be included if the email is sent to a single recipient If emails are sent to multiple recipients the variables are replaced with recipients 7 C
231. m public computers 5 Click OK to save settings 12 3 Failed emails There may be instances where the GFI MailEssentials email security or content filters cannot scan an email for example emails containing corrupted header information In this case GFI MailEssentials blocks the email since it may contain malicious content and moves it to the following folder lt GFI MailEssentials installation path gt EmailSecurity failedmails GFI MailEssentials 12 Miscellaneous topics 231 12 3 1 Reprocessing legitimate emails that fail It is recommended to contact GFI Support when a number of emails are being moved to the failedmails folder When the issue is resolved emails can be re scanned by GFI MailEssentials to determine if they are safe to be delivered note Files with extension PROP in the failedmails folder are used for troubleshooting purposes When reprocessing failed emails these files can be deleted GFI MailEssentials installed on Microsoft Exchange Server 2007 2010 1 In the failedmails folder change the extension of TXT files to EML note To automatically change the extension of all TXT files in the failedmails folder to EML files from command prompt change the directory to the failedmails folder and run the following command ren ue o ema 2 Move renamed files to the following folder lt drive gt Program Files Microsoft Exchange Server TransportRoles Replay GFI MailEssential
232. mail domains Specify the email domains GFI MailEssentials should treat as inbound Add all inbound email domains in which you recieve email E g If your email address is user afi com add gfi com masterdomain com Screenshot 5 Inbound email domains GFI MailEssentials 3 Installation 37 4 Inthe Inbound email domains dialog specify all the domains to scan for viruses and spam Any local domains that are not specified in this list will not be scanned Click Next note When adding domains select Obtain domain s MX records and include in perimeter servers list to retrieve the domain s MX records and automatically add them to the perimeter SMTP servers list configured in the next step 0 GFI MailEssentials Post Installation Wizard lel x SMTP Servers SMTP servers configuration Specify which SMTP servers receive emails directly from the internet This is the only SMTP server which receives emails directly from the internet The following SMTP servers receive emails directly from the internet and forward them to this server nter tr http kbese afi com showarticle asp id KBID003180 lt Back Cancel Screenshot 6 SMTP Server settings 5 In the SMTP Servers dialog specify how the server receives external emails If emails are routed through other servers before they are forwarded to GFI MailEssentials add the IP address of the other servers in the list For more informat
233. matically download any updates updates and available for this engine download 10 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 11 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully GFI MailEssentials 6 Email Security 71 note An email notification is always sent when an update fails 12 To check for and download updates immediately click Download updates 13 Click Apply 6 1 2 BitDefender 1 Go to Email Security gt Virus Scanning Engines gt BitDefender General Actions Updates G BitDefender AntiVirus Options Y Enable Gateway Scanning SMTP V Scan Inbound SMTP Email V Scan Outbound SMTP Email m Scan Internal and Information Store Items Macro Checking Do not check macros Y Block all documents containing macros BitDefender Version Information Build AVCORE v1 0 build 2409 i386 May 9 2007 18 01 21 Signatures 513583 Engine licensing Engine Licensing Status Licensed Automatic Updates Licensing Status License expires 9 29 2013 Screenshot 32 BitDefender configuration 2 Select Enable Gateway Scanning SMTP check box to scan emails using this Virus Scanning Engine 3 Select whe
234. me Last name and Company fields and click OK The new subscriber email address is added to Email list note First name last name and company fields are optional note To remove subscribers from list select user and click Remove note To remove users from the subscription list table when unsubscribing from the list and not just flag them as unsubscribed select Delete from database when user unsubscribes checkbox Importing subscribers to the list database structure GFI MailEssentials 10 Email Management 214 When a new newsletter or discussion list is created a table called listname_subscribers with the following fields as shown in the table below is created To import data into the list populate the database with data in the following fields Ls_id Varchar 100 Subscriber ID Ls_first Varchar 250 First name Ls last Varchar 250 Last name Ls_email Varchar 250 Email Ls_unsubscribed Int 0 NOT NULL Unsubscribe flag Ls_company Varchar 250 Company name 10 4 Mail Monitoring Mail monitoring enables copying emails sent to or from a particular local email address to another email address This enables the creation of central store of email communications for particular persons or departments 10 4 1 Enabling Disabling email monitoring 1 Click Start gt All Programs gt GFI MailEssentials gt Email Management Tools to load Email Management Tools 2 Right click Email management gt
235. ment Required to get email addresses from Lotus Domino server Other SMTP mail server environments Required to get email addresses from SMTP server 3 2 Pre installation actions Before installing GFI MailEssentials prepare your environment for deployment 3 2 1 Installing on the Microsoft Exchange server 2 222200 e cece cece cece cece ce ceeeeececeeeeeeeeeees 28 3 2 2 Installing on an email gateway or relay perimeter server 0 222200 e cece cece eceeeeeeeeeees 28 3 2 1 Installing on the Microsoft Exchange server When installing GFI MailEssentials on the same server as Microsoft Exchange 2003 or later no pre install actions or configurations are required note In Microsoft Exchange 2007 2010 environments GFI MailEssentials can only be installed on the servers with the following roles Edge Server Role or Hub Transport Role or gt Hub Transport and Mailbox Roles with this configuration GFI MailEssentials can also scan internal emails for viruses 3 2 2 Installing on an email gateway or relay perimeter server GFI MailEssentials can be installed Ona perimeter server for example in a DMZ gt As a mail relay server between the perimeter gateway SMTP server and mail server This setup is commonly used to filter spam on a separate machine commonly installed in the DMZ In this environment a server also known as a gateway perimeter server is set to relay emails t
236. ments to send with the auto reply email Remove attachments using Remove 10 Select Include email sent option to quote the inbound email in auto reply 11 Select Generate tracking number in subject to enable the generation of tracking numbers in the auto replies note This feature enables for example customers to reply quoting a tracking number that enables staff to track emails in a more coherent manner GFI MailEssentials 10 Email Management 207 note By default tracking numbers are generated using the following format ME YYMMDD _ nnonnnn Where gt ME GFI MailEssentials tag gt YYMMDD Date in year month and date format gt nnnnnn automatically generated tracking number 12 Click OK button to finalize settings 10 3 List Server List servers enable the creation of two types of distributions lists 1 A newsletter subscription list Used for creating subscription lists for company or product newsletters to which users can either subscribe or unsubscribe 2 A discussion list Enables groups of people to hold discussions via email with each member of the list receiving the email that a user sends to it 10 3 1 Creating a newsletter or discussion list 1 Click Start gt All Programs gt GFI MailEssentials gt Email Management Tools to load Email Management Tools 2 Right click Email Management gt List Server node and select New gt Newsletter or Discussion List GFI MailEsse
237. mpt key in nslookup and hit Enter 2 Key in set type mx and hit Enter 3 Specify your mail domain name and hit Enter The MX record should return the IP addresses of the mail relay servers Step 7 Test your new mail relay server Before proceeding to install GFI MailEssentials verify that your new mail relay server is working correctly Test IIS SMTP inbound connection 1 Send an email from an external account example from a Gmail account to an internal email address user 2 Ensure that intended recipient received the test email in the respective email client Test IIS SMTP outbound connection 1 Send an email from an internal email account to an external account example to a Gmail account 2 Ensure that the intended recipient external user received the test email GFI MailEssentials 3 Installation 31 note You can also use Telnet to manually send the test email and obtain more troubleshooting information For more information refer to http go gfi com pageid ME_TelnetPort25 3 3 Installation procedure This section describes how to run the installation of GFI MailEssentials 3 3 1 Important notes 1 If you are currently using a previous version of GFI MailEssentials you can upgrade your current installation while at the same time retaining all your existing configuration settings For more information refer to Upgrading a previous version page 40 LD IMPORTANT Upgrade is not
238. n Text format The subject of the email is ignored The following syntax must be used for all commands lt command name gt lt parameterl gt lt parameter2 gt lt parameter3 gt For example ADDBLIST spammer spam com There can be more than one command in the body of an email with each command separated by a semi colon If a password is configured for remote commands enter the password in the first line using the following syntax PASSWORD lt shared password gt Command names are case sensitive and should be written in UPPERCASE only Conditions such as IF AND OR are not supported Remote commands can only be used to add entries and not delete or modify existing entries Keyword commands Use keyword commands to add keywords or combination of keywords in the body or subject lists in Keyword Checking filter Available commands are ADDSUBJECT Adds keywords specified to the subject keyword checking database Example ADDSUBJECT sex porn spam ADDBODY Adds keywords specified to the body keyword checking database Example ADDBODY free 100 free absolutely free GFI MailEssentials 7 Anti Spam 146 note When configuring phrases other than a single words enclose them in double quotes e y Blocklist commands Use blocklist commands to add a single email address or an entire domain to the email blocklist Available commands are
239. n a virtual environment and monitors all actions and effects on a system If an attachment exhibits viral behavior email is marked as malicious and all appropriate actions are taken note Since this check is executed in a controlled virtual environment it does not pose any threats to the machine or network where GFI MailEssentials is installed o Email Exploit Actions Actions Select the actions to perform when an exploit is detected Quarantine email Delete email Notification options 9 Notify administrator E Notify local user Logging options Y Log occurrence to this file C Program Files x36 1GFMailEssentialslEmailSecurityogsWEmail Screenshot 39 Virus scanning engine actions 6 From Actions tab choose the action to take when an email is blocked GFI MailEssentials 6 Email Security 81 Quarantine email Stores all infected emails detected by the selected Virus Scanning Engine in the Quarantine Store You can subsequently review approve delete all the quarantined emails For more information refer to Quarantine page 180 Delete email Deletes infected emails Send a sanitized copy Choose whether to send a sanitized copy of the blocked email to the recipients of the original email to recipient s 7 GFI MailEssentials can send email notifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify N
240. ncluding R2 or later including Microsoft Windows Server 2012 Standard and DataCenter editions Supported Mail Servers GFI MailEssentials can be installed on the following mail servers without any further configuration Microsoft Exchange Server 2013 note Information Store Protection VSAPI is not supported on Microsoft Exchange Server 2013 because VSAPI was removed from Microsoft Exchange Server 2013 by Microsoft Microsoft Exchange Server 2010 Microsoft Exchange Server 2007 SP1 or higher Microsoft Exchange Server 2003 For more information refer to Installing on the Microsoft Exchange server page 28 GFI MailEssentials can also be installed in an environment with any SMTP compliant mail server In this case GFI MailEssentials should be installed on the gateway perimeter server so that spam is filtered before reaching the mail server For more information refer to Installing on an email gateway or relay perimeter server page 28 Supported Internet browsers GFI MailEssentials can be used with the following Internet browsers Microsoft Internet Explorer 8 or later Google Chrome version 22 0 1229 94 October 10 2012 or later Mozilla Firefox version 16 0 2 October 26 2012 or later Other required components Internet Information Services 1159 World Wide Web service Internet Information Services IIS SMTP service Except when installing on Microsoft Exchange 2007 2
241. nds Bi tenia 8 dd 68 61 2 BitDefender sic cad e ln el ee ee Ae a ee 72 6 1 23 TAO A cornet ng edo ap crt arate bh See aos he hota as 76 OA NORMA Mts raros dah fede oly ened ead idas sis 79 6215 MCATOE ci is eS 84 6 2 Information Store Protection 2 2 2 0 0 20 ccc c cece cece ccc ccc ceccecceceeeccecsetseeeetseeseeseeaes 88 6 2 1 Information Store Scanning 2 2 20 ccc cece enc eccceceeccececceeceecteseeseeeeaeens 88 6 2 2 VSAPI SettingS ooo ce cece ccc a a a aa dan d aa a Aiie 89 6 3 Trojan and Executable Scanner 22 20 2 22 oaaao cece ccc cecceccecccccecceceeseteeeeetseeseeseeaes 91 6 3 1 Configuring the Trojan amp Executable Scanner 0 2 20 20 e ce ececeececeecec cece 91 6 4 Email Exploit Engine 22 22 0000 on atd aa ccc ccc ccc cc cece cc aaa a aa aa eaea 94 6 4 1 Configuring the Email Exploit Engine 0 200 002 c ccc ccc cece ec cecccccecceceeseenees 94 6 4 2 Enabling Disabling Email Exploits 2 20 20 00 00 00 ccc ccc ccc cece cceccecccccecceceeceeseeseesees 97 AA AAA A iy he Se eet tel mete Sanne 97 6 5 1 Configuring the HTML Sanitizer 2 2 2 0 0 e cece ceccccceccecteseeseeseeneees 98 6 5 2 HTML Sanitizer Whitelist 2 0 20 00 20 c cece cece cece ec cec ccc cecceececcencetecesteseeeeaes 98 6 5 3 HTML Santizer Domain IP Exclusions 0 20 2 20 2 ccc cc ccc eccecceccceceecetseeceeseees 99 TANTES AM o oce Pek ee cence utes OAs cious ees EAN ean coins coe ree cane oe 101 ANN 1
242. neName gt log 9 Click Apply Check for recursive archives This filter allows you to quarantine or delete emails that contain recursive archives Recursive archives also known as nested archives are archives that contain multiple levels of sub archives that is archives within archives A high number of archive levels can indicate a malicious archive Recursive archives can be used in a DoS Denial of Service attack since recursive archives consume machine resources when they are being analyzed To configure this filter 1 Navigate to Content Filtering gt Decompression node 2 From the list of available filters click Check for recursive archives 3 To enable this filter select Check for recursive archives 4 Specify the maximum number of recurring archives in the Maximum number of recurring archives text box If an archive contains more recurring archives than the specified number the GFI MailEssentials 8 Content Filtering 176 email is triggered as malicious 5 Specify what to do when an email contains an archive that triggers this filter COI pesei Quarantine Quarantines blocked emails Automatically Delete Deletes blocked emails note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be able to block outbound emails but instead replaces the blocked content with a threat report 6 Select Send a sanitized copy of the original emai
243. never this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 5 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 95 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 50 Virus scanning engine updates 6 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 7 From Downloading option
244. nfigmgr exe GFI MailEssentials 12 Miscellaneous topics 246 E GFI MailEssentials Configuration Export Import Tool Al ES Use this tool to export the GFI MailEssentials configuration files to a specific location orto import an exported configuration back into GFI MailEssentials Screenshot 143 Configuration Export Import Tool note Duration of the export process depends on the databases sizes 4 Click Export 5 From Browse for Folder dialog choose folder where to export configuration settings and click OK 6 On completion click Exit Step 2 Copy the exported settings 1 Manually copy the folder where the configuration settings were exported 2 Paste the folder to the machines where to import the settings Step 3 Import settings to new installation LD IMPORTANT When importing settings the imported files overwrite existing settings for example Source DNS settings and may require reconfiguration of particular network settings and spam actions GFI MailEssentials 12 Miscellaneous topics 247 note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 1 Stop the following services GFI List Server gt GFI MailEssentials Enterprise Transfer gt GFI MailEssentials Legacy Attendant gt GFI MailEssentials AntiSpam Attendant gt GFI POP2Exchange IIS Admin service 2 Go to lt GFI MailEssenti
245. ng remote commands and processes them as described below With remote commands the following tasks can be achieved 1 Add Spam or ham to the Bayesian Analysis database 2 Add keywords either to the subject keyword checking feature or to the body keyword checking feature 3 Add email addresses to the Email Blocklist filter and Whitelist Configuring remote commands 1 Click Anti Spam gt Anti Spam Settings go to Remote Commands tab and select Enable remote commands 2 Edit the email address to which remote commands should be sent to GFI MailEssentials 7 Anti Spam 145 note The email address should NOT be a local domain The default address is rcommandsemailessentials com A mailbox for the configured address does not need to exist but the domain part of the address must consist of a real email address domain that returns a positive result to an MX record lookup via DNS This can also be a public email account that you can manage for example gmail or yahoo mail 3 Optionally configure some basic security for remote commands A shared password to include in the email For more information refer to Using remote commands page 146 Which users are allowed to send emails with remote commands 4 Click Apply Using remote commands Remote commands can be sent via email to GFI MailEssentials from an email client within the domain Conditions for sending remote commands The email must be in Plai
246. ngine updates successfully GFI MailEssentials 6 Email Security 75 note An email notification is always sent when an update fails 13 To check for and download updates immediately click Download updates 14 Click Apply 6 1 3 Kaspersky 1 Go to Email Security gt Virus Scanning Engines gt Kaspersky General A Kaspersky AntiVirus Options 7 Enable Gateway Scanning SMTP V Scan Inbound SMTP Email Y Scan Outbound SMTP Email y Scan Internal and Information Store Items Kaspersky Scanner Engine Version Information Scanner engine version Version 8 0 2 45 Virus signature count 8120560 Virus signature date 2012 06 06 09 03 00 Engine licensing Engine Licensing Status Licensed Automatic Updates Licensing Status License expires 25 01 2013 Screenshot 35 Kaspersky configuration 2 Select Enable Gateway Scanning SMTP check box to scan emails using this Virus Scanning Engine 3 Select whether to scan inbound and or outbound emails using this Virus Scanning Engine Scan inbound SMTP email Select this option to scan incoming emails Scan outbound SMTP email Select this option to scan outgoing emails 4 If you installed GFI MailEssentials on a Microsoft Exchange machine you will also have the option to scan internal emails and the Information Store Select Scan Internal and Information GFI MailEssentials 6 Email Security 76
247. nimum HTML body size bytes Check if email contains GIF images Check if email contains attachment spam Subject Check if the email subject contains the first part of the recipient email address Email exception list a Screenshot 66 Header checking options 2 Enable disable or configure the following parameters GFI MailEssentials 7 Anti Spam 122 CA peseription Check if the email header contains an empty MIME FROM field Check if the email header contains a malformed MIME FROM field Maximum number of recipients allowed in email Check if the email headers contain different SMTP TO and MIME TO fields Verify if sender domain is valid performs DNS lookup on MIME FROM Maximum numbers allowed in the first part of the MIME FROM field Check if email contains encoded IP addresses Check if email contains remote images only Minimum HTML body size Check if email contains GIF images Check if email contains attachment spam Check if the email subject contains the first part of the recipient email address Checks if the sender has identified himself in the From field If this field is empty the message is marked as spam Checks if the MIME from field is a correct notation as defined in the RFCs Identifies emails with large amounts of recipients and flags them as SPAM Checks whether the SMTP to and MIME to fields are the same The spammers email serv
248. ns 00 0 22 eco c ccc cece cece cece cece cece cece eceeeeeeeeeeeeeeeeeeeees 143 7 5 3 DNS Server Settid9S ccc cece cece cece oe ede ean aided ar Eai S 144 7 5 4 Remote Commands as 145 7 5 5 Perimeter SMTP Server Settings 0 00000 0000 e cece cece eeeeeeeeceeeeeeees 148 7 6 Public Folder Scanning 0 0 202 c cece cece ccc eee cece cece cece eee cece cece NAAA aaraa hiep 149 7 6 1 Enabling Public Folder Scanning 0000 0 cece cece cece cece cece cece ec eee cceceececeeeceeeees 149 7 6 2 Using Public folder scanning 0 222 cece cece cece cece eee cece oaaao aaan aoaaa raaa 153 7 1 Anti Spam filters GFI MailEssentials uses various scanning filters to identify spam FILTER DESCRIPTION ENABLED BY DEFAULT SpamRazer An anti spam engine that determines if an email is spam by using email Yes reputation message fingerprinting and content analysis Anti Phishing Blocks emails that contain links in the message body pointing to known Yes phishing sites or if they contain typical phishing keywords GFI MailEssentials 7 Anti Spam 101 FILTER DESCRIPTION ENABLED BY DEFAULT Director Harvesting Email Blocklist IP DNS Blocklist URI DNS Blocklist Sender Policy Framework Anti Spoofing Greylist Header Checking Spam Keyword Checking Bayesian analysis Whitelist New Senders 7 1 1 SpamRazer Directory harvesting attacks occur when spammers try to guess emai
249. nstalling GFI MailEssentials GFI MailEssentials 7 Anti Spam 112 wy Important notes 1 The DNS server must be properly configured for this feature to work If this is not the case time outs will occur and email traffic will be slowed down For more information refer to http go gfi com pageid ME_ProcessingSlow Querying an IP DNS Blocklist can be slow depending on your connection so email can be slowed down a little bit Ensure that all perimeter SMTP servers are configured in the Perimeter SMTP servers dialog so that GFI MailEssentials can check the IP address that is connecting to the perimeter servers For more information refer to Perimeter SMTP Server Settings page 148 Configuring IP DNS Blocklist 1 Goto Anti Spam gt Anti Spam Filters gt IP DNS Blocklist General iR IP DNS Blocklist Configuration Y Check whether the sending mail server is on one of the following IP DNS Blocklist IP DNS Domain IP DNS list Name Status Priority 7 bl spamcop net Enabled 1 t TF dnsbl njabl org Enabled 2 t dul dnsbl sorbs net Enabled 3 Enable Selected Disable Selected Remove Selected Screenshot 61 IP DNS Blocklist 2 Configure the following options Check whether the sending mail server ison Select to enable the IP DNS Blocklist filter one of the following IP DNS Blocklists Add IP DNS Blocklist If required add more IP DNS Blocklists to the ones already listed
250. ntiSpam and open mesentcfg msc 2 Right click Anti Spam Synchronization Agent gt Configuration node and select Properties Configuration Properties xi Master Slave Y Configure this server as a slave server if it uploads anti spam data to ih the master server IV This GFI MailEssentials server is a slave server Host name winservb tcdomainb com Upload settings URL to mydomain com MESynchAgent Port 20 JV Credentials required User admin Password Cc Automatic Y pload EYE 2 hours e Manual Download every fi hours Upload now Download now Screenshot 142 Configuring a slave server 3 From the Slave tab select This GFI MailEssentials server is a slave server 4 In the URL field specify the full URL to the virtual directory hosted on the master server in the following format http lt master server domain name gt MESynchAgent GFI MailEssentials 12 Miscellaneous topics 245 gt Example http mydomain com MESynchAgent 5 In the Port field specify the port used by the master server to accept HTTP communications note By default the port value is set to 80 which is the standard port used for HTTP 6 Select Credentials required and key in credentials used to authenticate with the master server 7 Select CA Automatic Synchronization occurs automatically at a set interval In the Upload every field specify the upload interval in hours that determ
251. ntials 10 Email Management 208 om Configure the list name domain and additional options for this list s List name Compary_Activities Which domain will the list use Only relevant if you have multiple domains tedomainb com List email addresses List address Company_Activities tedomainb com Subscribe Company_Activities subscribe tcdomainb com Unsubscribe Company_Activities unsubscribe tcdomainb com Cancel Help Screenshot 117 Creating a new list 3 In the List name field key in a name for the new list and select a domain for the list only if you have multiple domains Click Next to continue setup 4 Select Microsoft Access or Microsoft SQL Server MSDE as database and from the Database type group select if GFI MailEssentials should create a new database or connect to an existing database Click Next to continue note For lists of up to 5000 members you can use Microsoft Access as a backend note To create a new database select Automatic option 5 Configure the database type selected to store the newsletter discussion subscribers list The available options are Microsoft Access Key in the location where the new database is stored in the File edit box with Automatic Option GFI MailEssentials 10 Email Management 209 CA f peseription OOO Microsoft Access with Existing Option Microsoft SQL Server with Automatic Option Microsoft SQL with Exi
252. nts For more information refer to Working with Quarantined emails page 187 Search for Spam Only 1 Go to GFI MailEssentials gt Quarantine GFI MailEssentials 9 Quarantine 183 General Date Any date time Search by sender Search by recipient Search for text in subject PT PT Search for EREU Spam Search by anti spam filter Any Screenshot 98 Spam Only search area 2 From the Quarantine page select Spam Only from Search for dropdown 3 Specify the required search criteria Available options are SEARCH CRITERIA DESCRIPTION Date Select the date range when the email was quarantined Available date ranges are gt gt Any date time Since yesterday 2 Last 7 days 2 Last 30 days Custom date range Search by sender Specify a sender who sent the email that was quarantined Search by recipient Specify a recipient for whom an email was quarantined Search for text in subject Specify the text to search for within quarantined email subject Search by anti spam filter Select the anti spam filter that identified the email to search for as Spam 4 Click Search note Use the search results to review quarantined emails You can approve false positives for delivery to recipients For more information refer to Working with Quarantined emails page 187 GFI MailEssentials 9 Quarantine 184 9 3 Search Folders A Search Folder is a folder
253. o By default GFI MailEssentials binds to your Default SMTP Virtual Server If you have multiple SMTP virtual servers on your domain you can bind GFI MailEssentials to any available SMTP virtual server LY NOTES 1 If you are installing on a Microsoft Exchange Server 2007 2010 2013 machine this option is not shown since Microsoft Exchange has its own built in SMTP server 2 After installation you can still bind GFI MailEssentials to another SMTP virtual server from the GFI MailEssentials Configuration For more information refer to SMTP Virtual Server bindings page 223 Click Next 9 Select folder where to install GFI MailEssentials and click Next note When the installation is an upgrade GFI MailEssentials installs in the same location as the previous installation 10 Click Install to start the installation process note If you are prompted to restart the SMTP services click Yes 11 On completion click Finish note For new installations setup will launch the Post Installation Wizard For more information refer to Post Installation Wizard page 36 GFI MailEssentials 3 Installation 35 3 3 3 Post Installation Wizard The post installation wizard loads automatically after installing GFI MailEssentials the first time It enables configuration of the most important settings of GFI MailEssentials 1 Click Next in the welcome page 2 GFI MailEssentials Post Installation Wizard Ea E
254. o relay emails to your mail server and configure the MX record of your domain to point to the gateway machine For more information refer to Installing on an email gateway or relay perimeter server page 28 GFI MailEssentials 2 About GFI MailEssentials 23 3 Installation The scope of this chapter is to help you install GFI MailEssentials on your network with minimum configuration effort Topics in this chapter 3 1 System requirements nn 24 3 1 1 Hardware requirements 2 0000 2 ccc cece cece cece cece eee e cece eee ee cee eee ceeeeeeeceeeeeereeeeeeess 24 31A Processor A O 24 3 1 3 Available Memory RAM 2 220000 c cece cece cece cece eee conc ceeeeeeeeeeeeeeeeeeeeeeeeees 24 3 1 4 Free Disk Space ooo e eScecncan ewes vad lia tratarlas 24 3 1 5 Software requirements occ coco cnn nn 25 3 1 6 Antivirus and backup software 2 2 0 0 2 0 0 00 c cece cece cece oaaao aaan aooaa aaa 26 3 1 7 Firewall port settings 220002000000 e cece cece cece cece EA ANE EE EUS 27 3 2 Pre installation actions 020 0 c ccc cece cece cece cece cece cece cece cece ee eeceeeeeeeeeceeseeeees 28 3 2 1 Installing on the Microsoft Exchange server _ 22 2 220 c cece eee cece cee eee cence eens 28 3 2 2 Installing on an email gateway or relay perimeter server 022222000 e cece cece eeeeee 28 3 3 Installation procedure 2 2 2 2 2 2 e cece cece cece eee nn cn cnnnneos 32 3 321 Important NOLES occ eho secs
255. o the mail server GFI MailEssentials is installed on the gateway perimeter server so that spam and email malware is filtered before reaching the mail server GFI MailEssentials uses the IIS SMTP service as its SMTP Server and therefore the IIS SMTP service must be configured to act as a mail relay server To do this Step 1 Enable IIS SMTP Service Step 2 Create SMTP domains for email relaying Step 3 Enable email relaying to your Microsoft Exchange server Step 4 Secure your SMTP email relay server GFI MailEssentials 3 Installation 28 Step 5 Enable your mail server to route emails via gateway Step 6 Update your domain MX record to point to mail relay server Step 7 Test your new mail relay server Step 1 Enable IIS SMTP Service Windows Server 2003 1 Go to Start gt Control Panel gt Add or Remove Programs gt Add Remove Windows Components 2 Select Application Server and click Details 3 Select Internet Information Services IIS and click Details 4 Select the SMTP Service option and click OK 5 Click Next to finalize your configuration Windows Server 2008 1 Launch Windows Server Manager 2 Navigate to the Features node and select Add Features 3 From the Add Features Wizard select SMTP Server note The SMTP Server feature might require the installation of additional role services and features Click Add Required Role Services to proceed with installation 4 In the following screens click Nex
256. odes Delete the GFI MailEssentials installation folder and its backup From cluster administrator delete all GFI services GFI MailEssentials 16 Appendix 3 Microsoft Exchange 2003 Clusters 279 17 Glossary A Active Directory A technology that provides a variety of network services including LDAP directory services AD See Active Directory Anti virus software Software that detects malware such as Trojan horses in emails files and applications Auto reply An email reply that is sent automatically to incoming emails Background Intelligent Transfer Service A component of Microsoft Windows operating systems that facilitates transfer of files between systems using idle network bandwidth Bayesian Filtering An anti spam technique where a statistical probability index based on training from users is used to identify spam BITS See Background Intelligent Transfer Service Blocklist A list of email addresses or domains from whom email is not to be received by users Botnet A network of infected computers that run autonomously and are controlled by a hacker cracker C CIDR See Classless Inter Domain Routing Classless Inter Domain Routing An IP addressing notation that defines a range of IP addresses GFI MailEssentials 17 Glossary 280 Decompression engine A scanning module that decompresses and analyzes archives for example zip and rar files attached to an email Demilitarized Zone An inte
257. om OPTION DESCRIPTION Block SOFT FAIL result Block SOFT FAIL Neutral Unknown and NONE results GFI MailEssentials Blocks all emails which Sender IP address is definitely not allowed to send emails from the sender domain Sender IP address is probably not allowed to send emails from the sender domain For more information on Advanced SPF filtering refer to http go gfi com pageid ME_SPFfilter Blocks all emails which Sender IP address is definitely not allowed to send emails from the sender domain gt Sender IP address is probably not allowed to send emails from the sender domain Sender IP address is explicitly inconclusive unknown or for which there is no published data For more information on Advanced SPF filtering refer to http go gfi com pageid ME_SPFfilter 7 Anti Spam 116 4 Select IP Exceptions or Email Exceptions tab to configure IP addresses and or recipients to exclude from SPF checks gt IP exception list Entries in this list automatically pass SPF checks Select IP Exception List checkbox add a new IP address and description and click Add To remove entries select entries from the list and click Remove Selected To disable the IP exception list unselect IP Exception List checkbox note When adding IP addresses to the IP exception list you can also add a range of IP addresses using the CIDR notation Email exception list This option ensures that certain email
258. om database of email addresses and domains from which you never want to receive emails This filter is enabled by default on installing GFI MailEssentials Configuring Email Blocklist 1 Goto Anti Spam gt Anti Spam Filters gt Email Blocklist Blocklist Personal Blocklist 8 Specify which email addresses will be filtered for spam V Enable email blocklist Blocklist Entry Email Address Domain gt gt gt Email Type Description Blocklist search o E Email Description FT El listadult newsletter com O sexymailer com Specify the full path and filename of the file to use for importing Note Import of list data cannot be performed unless the import list is on the server where GFI MailEssentials is installed Legend Recipient Screenshot 59 Email blocklist 2 From the Blocklist tab configure the email addresses and domains to block GFI MailEssentials 7 Anti Spam 110 OPTION DESCRIPTION Enable Select Unselect to enable disable email blocklist Email Blocklist Add Add email addresses email domains or an entire domain suffix to the blocklist 1 Key in an email address domain for example spammer com or an entire domain suffix for example tv to add to the blocklist 2 Specify the email type to match for the emails to be blocklisted O NOTE For more information about the difference between SMTP and MIME refer to
259. om the Microsoft Exchange System Manager expand Folders gt Public Folders node Right click GFI AntiSpam Folders public folder and select Properties Click Permissions tab and select Client permissions Click Add select new user and click OK Select the new user from the client permissions list and from the provided list set its role to Owner Ensure that all checkboxes are selected and the radio buttons are set to All Click OK to finalize your configuration From the Microsoft Exchange System Manager right click GFI AntiSpam Folders and select All tasks gt Propagate settings GFI MailEssentials 7 Anti Spam 151 note For Microsoft Exchange Server 2003 SP2 right click GFI AntiSpam Folders and select All tasks gt Manage Settings option 9 Select Folder rights or Modify client permissions and click OK or Next 10 Specify the credentials of the new power user account created in step 1 and test the setup to ensure permissions are correct Configure a dedicated user account for Microsoft Exchange Server 2007 2010 When configuring a dedicated user account to retrieve the emails from the GFI AntiSpam Public folders the user would need to have owner access rights on the GFI AntiSpam Public Folders 1 Create a new Active Directory AD power user 2 Logon to the Microsoft Exchange Server using administrative privileges 3 Open Microsoft Exchange Management Shell and key in following command
260. on list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and automatically download any updates updates and available for this engine download 10 Specify how often you want GFI MailEssentials to check download updates for this engine by specifying an interval value in hours 11 From Update options area select Enable email notifications upon successful updates to send an email notification to the administrator whenever the engine updates successfully GFI MailEssentials 6 Email Security 93 note An email notification is always sent when an update fails 12 To check for and download updates immediately click Download updates 13 Click Apply 6 4 Email Exploit Engine The Email Exploit Engine blocks exploits embedded in an email that can execute on the recipient s machine either when the user receives or opens the email An exploit uses known vulnerabilities in applications or operating systems to compromise the security of a system For example execute a program or command or install a backdoor 6 4 1 Configuring the Email Exploit Engine 1 Go to Email Security gt Email Exploit Engine General Actions Updates Em
261. on might cause the product to malfunction or degrade its performance 11 9 Access Control Allow or block access to various features of GFI MailEssentials for particular domain users or groups Users can access the Web UI of GFI MailEssentials using their domain credentials The features shown to logged in users depends on the Access Control configuration GFI MailEssentials 11 General Settings 225 note Configuring Web UI access is only possible when GFI MailEssentials is running in IIS mode and can be accessed over the network including different trusted domains Access Control is not configurable when GFI MailEssentials is running in Local mode For more information refer to User interface mode page 227 1 From GFI MailEssentials Configuration go to General Settings gt Access Control Add domain users or groups and select the product features to allow access to Access Control Full Quarantine uU Nam ser Group e Access Access Access s j 5 Administrators IV E E r J Administrator Administrator tcdomainb com M E r a qa G j e Domain Admins 7 al la la Reyer ties RSS Access Delete To Configure who can access GFI MailEssentials and what features are available for which users Add User Group Screenshot 131 Access control settings 2 Click Add User Group 3 In the User Lookups dialog enter the name of the user or group to add and click Check Names 4 GFI MailEs
262. ort request on http support gfi com supportrequestform asp Phone To obtain the correct technical support phone number for your region visit http www gfi com company contact htm note Before contacting Technical Support have your Customer ID available Your Customer ID is the online account number that is assigned to you when first registering your license keys in the GFI Customer Area at http customers gfi com We will answer your query within 24 hours or less depending on your time zone 13 8 Documentation If this manual does not satisfy your expectations or if you think that this documentation can be improved in any way let us know via email on documentation gfi com GFI MailEssentials 13 Troubleshooting and support 264 14 Appendix 1 Bayesian Filtering The Bayesian filter is an anti spam technology used within GFI MailEssentials It is an adaptive technique based on artificial intelligence algorithms hardened to withstand the widest range of spamming techniques available today This chapter explains how the Bayesian filter works how it can be configured and how it can be trained note 1 The Bayesian anti spam filter is disabled by default It is highly recommended that you train the Bayesian filter before enabling it 2 GFI MailEssentials must operate for at least one week for the Bayesian filter to achieve its optimal performance This is required because the Bayesian filter acquires
263. osoft Exchange server GFI MailEssentials Figure 1 Installing GFI MailEssentials on your Microsoft Exchange server You can install GFI MailEssentials directly on Microsoft Exchange Server 2003 or later without any additional configuration note In Microsoft Exchange 2007 2010 environments GFI MailEssentials can only be installed on the servers with the following roles gt Edge Server Role or Hub Transport Role or gt Hub Transport and Mailbox Roles with this configuration GFI MailEssentials can also scan internal emails for viruses note GFI MailEssentials supports a number of mail servers but can only be installed on the same machine as Microsoft Exchange For other mail servers for example Lotus Domino install GFI MailEssentials on a separate machine 2 5 2 Installing on an email gateway or relay perimeter server GFI MailEssentials 2 About GFI MailEssentials 21 Ped ia Fa GFI MailEssentials Figure 2 Installing GFI MailEssentials on a mail gateway relay server This setup is commonly used to filter spam on a separate machine commonly installed in the DMZ In this environment a server also known as a gateway perimeter server is set to relay emails to the mail server GFI MailEssentials is installed on the gateway perimeter server so that spam and email malware is filtered before reaching the mail server This method enables you to filter out blocked emails before these are rece
264. ot work 5 Click Finish to apply settings 6 Click OK 12 8 Synchronizing configuration data When GFI MailEssentials is installed on multiple servers it is important to keep configuration data synchronized between servers GFI MailEssentials enables this process through two features that keep multiple GFI MailEssentials installations synchronized Anti spam synchronization agent This service automates the process of keeping settings synchronized between separate installations using the Microsoft BITS service gt Configuration Export Import Tool This application enables the manual export of GFI MailEssentials configuration settings and import to other installations 12 8 1 Anti spam synchronization agent How it works GFI MailEssentials 12 Miscellaneous topics 241 The Anti Spam Synchronization Agent works as follows 1 A server machine hosting GFI MailEssentials is configured as the master server 2 The other server machines where GFI MailEssentials is installed are configured as slave servers 3 The slave servers upload an archive file containing settings to an IIS virtual folder hosted on the master server via the Microsoft BITS service 4 When the master server collects all slave servers data the data is extracted from the individual archives and merged into a central archive file 5 The slave servers download this central archive file and take care of extracting it and updating the local GFI Mai
265. otifications whenever an email triggers this filter To enable this feature select any of the following options Foption Description Notify Notify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 5 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log Step 4 Specifying users to whom this rule applies 1 By default the rule is applied to all email users GFI MailEssentials however allows you to apply this rule to a custom list of email users specified in the Users Folders tab GFI MailEssentials 8 Content Filtering 160 G 3 Content Filtering Users Folders Please select users this rule will apply to Only this list O All except this list Add Remove Screenshot 85 Content Filtering Users Folders Tab 2 Specify the users to apply this rule to Only this list Apply this rule to a custom list of email users groups or public folders All except this list Apply this rule to all email users except for the users groups or publ
266. otify the administrator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 8 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 82 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 40 Virus scanning engine updates 9 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine
267. oting Tracing Quarantine Other EL Specify options which aid in troubleshooting Enable Disable Email Processing When troubleshooting it is sometimes necessary to enable disable email Processing without needing to uninstall the product e Enable Disable Email backup before after processing When troubleshooting it is sometimes necessary to keep a backup copy of emails before and after being processed by GFI MailEssentials IV Keep a copy of every email before and after email processing Backup copies of the emails will be copied to the following folders C Program Files x86 GFIMMailEssentials Antispam Source Archives C Program Files 86 GFI MailEssentials EmailSecurity SourceArchives Screenshot 146 The GFI MailEssentials Switchboard Troubleshooting 2 Click Enable or Disabled to enable or disable email processing GFI MailEssentials 12 Miscellaneous topics 252 note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 3 In the Service Restart Required dialog click Yes to restart services 4 Click OK 12 10 Email backup before and after processing LD IMPORTANT Use this option for troubleshooting purposes only 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Troubleshooting tab N GFI MailEssentia
268. oves emails tagged as spam to the users mailbox LD IMPORTANT To use Rules Manager in Spam Actions select the Tag the email with specific text option and specify a tag Install Rules Manager on the Microsoft Exchange Server 1 From the GFI MailEssentials machine go to lt GFI MailEssentials installation path gt GFl MailEssentials Antispam 2 Copy the following files to a folder on the Microsoft Exchange Server GFI MailEssentials 12 Miscellaneous topics 238 rulemgmtres dll rulemgmt exe gt rule dll gt gfi_log dll 3 From the Microsoft Exchange Server open command prompt and change the directory to the location where the Rules Manager files were copied 4 In command prompt type regsvr32 rule dl1 5 On confirmation click OK Launch Rules Manager 1 From the Microsoft Exchange Server navigate to the location where Rules Manager files were copied and open rulemgmt exe 2 Select a Microsoft Outlook profile MAPI profile or create a new profile to login when using the Rules Manager the first time only 3 Click OK to launch the Rules Manager 4 The main window of the rules manager displays all the mailboxes enabled on the Microsoft Exchange Server The color of the mailboxes indicates the status of that mailbox Blue mailbox has rules configured Black mailbox has no rules configured Setting new rules 1 Check the mailboxes to set a rule on and click Configure
269. ply Help Screenshot 123 Configuring email monitoring 3 Click sender and recipient Select buttons to specify which emails this rule should monitor Click Add to add filters to the list Repeat to specify multiple filters The following conditions can be monitored GFI MailEssentials 10 Email Management 216 note To monitor all mail key in Condition rue All email sent by a Create outbound rule specify sender email or select user if using AD in the sender field particular user and key in as the recipient s domain All email sent to a Create inbound rule specify recipient email or select user if using AD in the recipient particular user field and specify as the sender s domain Mail sent by a particular Create an outbound rule specify sender or select user if using AD in the sender field Key user to an external in external recipient email in the recipient field recipient Mail sent to a particular Create an inbound rule and specify external sender email in the sender field Key in the user by an external username or user email address in the recipient field sender Mail sent by a particular Create an outbound rule and specify sender or select user if using AD in the sender field user to a company or Specify the domain of the company in the recipient field by selecting the domain via the domain recipient button Mail sent to a particular Create an inbound rule and specify domain of the company
270. ps to determine what is displayed to logged in users when they login GFI MailEssentials If the currently logged in user is part of the Administrators group then GFI MailEssentials loads with all the configuration options that enable setting up GFI MailEssentials If the currently logged in user is part of the users group then GFI MailEssentials loads with only a limited number of options that enable the currently logged on user to administer his her own quarantine and the personal whitelist blocklists The url used to login GFI MailEssentials is always the same one regardless of whether the currently logged on user is part of the administrator or user Active Directory group This topic explains what users can do when they login using a user non Active Directory Administrator account note User actions are only available if GFI MailEssentials is configured to use IIS mode For more information refer to User interface mode page 227 Topics in this chapter 5 1 Personal Whitelist and Blocklist ccoo ccoo coco nn eee ence eee eeeeeeee 62 5 2 Quarantine Search 2 cseksect ate ceeeesen ecadee so lia rd tatoo acia 64 5 2 1 Using the Quarantine Search 2 2 2 cece cece cece cece ee aaao aoaaa aaan 65 5 1 Personal Whitelist and Blocklist The Personal Whitelist and Blocklist feature enables users to configure a complimentary list of whitelisted and blocklisted email addresses over and above the list set up by the systems administ
271. r Filters to remove specified filters and to show all email logs GFI MailEssentials 4 Monitoring status 50 4 1 3 Antivirus and anti spam engine updates Dashboard Logs Updates POP2Exchange A GFI MailEssentials checks for and downloads updates for anti virus engines and for spam filters A Anti Virus Definition Updates Engine Last Update Status Y VIPRE AntiVirus 06 01 2012 13 56 34 Q No updates currently in progress last update succeeded amp BitDefender AntiVirus 06 01 2012 14 43 44 a No updates currently in progress last update succeeded Kaspersky AntiVirus 06 01 2012 11 49 10 g No updates currently in progress last update succeeded N Norman AntiVirus 06 01 2012 13 10 21 a No updates currently in progress last update succeeded McAfee AntiVirus 05 31 2012 20 05 28 G No updates current y in progress last update succeeded Update all engines A Anti Spam Definition Updates Engine Last Update Status Hi SpamRazer 01 06 2012 15 08 26 a No updates currently in progress last update succeeded 2 AntiPhishing 01 06 2012 15 08 32 a No updates currently in progress last update succeeded lhe Bayesian 30 05 2012 16 10 10 g No updates currently in progress last update succeeded Update all engines Screenshot 16 Virus scanning engines updates The updates of antivirus and antispam scanning engines can be monitored from a central page Go to GFI MailEssentials gt Dashboard and select the Updates tab
272. r Scanning page 149 Stage 2 Enabling the Bayesian filter After the Bayesian filter is trained it must be enabled 1 From GFI MailEssentials configuration console go to Anti Spam gt Anti Spam Filters gt Bayesian Analysis 2 From the General tab select Enable Bayesian Analysis General Updates Actions hy Configure the Bayesian Analysis settings Bayesian options Enable Bayesian Analysis Allow GFI MailEssentials to learn for a minimum of one week depending on your mail volume from your outbound mail before enabling Alternatively run Bayesian Wizard see Administrator Guide for more information Y Automatically learn from outbound e mails Amount of emails in Bayesian database Legitimate emails HAM 45819 Spam emails 73378 If you rarely send and receive English emails then it is recommended to have a minimum of 3000 HAM and spam emails to ensure effective filtering If however you send and receive mostly English emails then a minimum recommendation of 2500 HAM and spam emails should be enough to ensure effective filtering Screenshot 69 Bayesian analysis properties 3 In the Updates tab configure the frequency of updates to the spam database by enabling Automatically check for updates and configuring an hourly interval note Click Download updates now to immediately download any updates GFI MailEssentials 7 Anti Spam 129 note You can download updates usin
273. r is working correctly 5 Test the IIS SMTP inbound connection of the mail relay server by sending an email from an external account to an internal user use web mail for example MSN Hotmail if you do not have an external account available Verify that the email client received the email 6 Test the IIS SMTP outbound connection of your mail relay server by sending an email to an external account from an email client Verify that the external user received the email note Alternatively instead of an email client send email manually through Telnet This will give you more troubleshooting information For more information refer to http support microsoft com support kb articles Q153 1 19 as 15 2 3 Configuring Lotus Domino to send outbound emails through GFI MailEssentials To direct all outgoing emails to the server where GFI MailEssentials is installed Lotus Domino needs to be configured as below 1 From the Lotus Domino Administrator click Configuration tab and select Server gt Configurations Server DominoSrv Acme i Release 8 5 3 on Windows Longhom 64 6 1 OT Server Current Server Document ET All Server Documents T Configurations E Connections E Programs E Extemal Domain Network Information Screenshot 153 Lotus Domino Administrator click Configurations option GFI MailEssentials 15 Appendix 2 Lotus Domino 271 2 After configuration section is selected main window will show th
274. r more information refer to Post Installation Wizard page 36 It is also recommended to verify the following settings that are not configured during the Post Installation wizard Directory Harvesting This must be verified when importing to a server that connects to a different Active Directory or with an Active Directory which is located on a different server For more information refer to Directory Harvesting page 107 Spam Actions Some spam actions are only available for Microsoft Exchange environments If importing settings to a different environment for example on an IIS Server actions will not work For more information refer to Spam Actions What to do with spam emails page 135 GFI MailEssentials 12 Miscellaneous topics 251 note For more information on the settings to verify after import refer to http go gfi com pageid ME_ChecklmportSettings 12 9 Disabling email processing Disabling email processing disables all protection offered by GFI MailEssentials and enables all emails including spam and malicious emails to get to your user s mailboxes Email processing is typically disabled only for troubleshooting purposes To enable disable GFI MailEssentials from processing emails 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Troubleshooting tab N GFI MailEssentials Switchboard Ul Mode Troublesho
275. r s email Alternatively click Delete to permanently delete an email from Quarantine GFI MailEssentials 5 User Actions 67 6 Email Security The security filters of GFI MailEssentials offer protection against virus infected and other malicious emails Topics in this chapter 6 1 Virus Scanning Engines o 2 2222 coo 68 6 2 Information Store Protection 20 00 22 coe e eee n nee eeeeeeeeeeee es 88 6 3 Trojan and Executable Scanner 20 2 2 222 o occ cece cece eee cece eee e cece ee eeeeeeeeeeeeeeeeeeeeeees 91 6 4 Email Exploit Engine 00 000000000 c cece e eee cence cnc cnn 94 6 90 HTML SAMMI ZEN cies rere nee ol ss eh eee ees Ail Lee cee teca 97 6 1 Virus Scanning Engines GFI MailEssentials uses multiple antivirus engines to scan inbound outbound and internal emails for the presence of viruses GFI MailEssentials ships with Vipre and BitDefender Virus Scanning Engines You can also acquire a license for Norman Kaspersky amp McAfee This chapter describes how to configure Virus Scanning Engines updates actions and the scanning sequence Oi VIPE eeu ts st oett oh ele RS A 68 6 1 2 BitDefender cosca e nn cnn 72 6 1 3 Kaspersky 2 2 0 2 2 cece cece ccc cece eee cece cece eee cece cece eee cece eeeeeeeeeeeeeeeeeeeeeeceeereeeseeeees 76 61A NOMMAM c22t iota 2 cot asec E Ma eet h see Sods 2 i eee Dae Sa al bed ET eee 79 6 1 5 McAfee ns 84 6 1 1 Vipre 1 Go to Email Security gt Virus Scanning Engine
276. rantined Virus Scan Messages Quarantined sec Virus Scan Files Scanned Virus Scan Files Scanned sec Virus Scan Files Cleaned Virus Scan Files Cleaned sec Virus Scan Files Quarantined Virus Scan Files Quarantined sec GFI MailEssentials A cumulative value of the total number of top level messages that are processed by the virus scanner Represents the rate at which top level messages are processed by the virus scanner Total number of top level messages that are cleaned by the virus scanner Rate at which top level messages are cleaned by the virus scanner Total number of top level messages that are put into quarantine by the virus scanner Rate at which top level messages are put into quarantine by the virus scanner Total number of separate files that are processed by the virus scanner Rate at which separate files are processed by the virus scanner Total number of separate files that are cleaned by the virus scanner Rate at which separate files are cleaned by the virus scanner Total number of separate files that are put into quarantine by the virus scanner Rate at which separate files are put into quarantine by the virus scanner 12 Miscellaneous topics 258 Virus Scan Bytes Scanned Total number of bytes in all of the files that are processed by the virus scanner Virus Scan Queue Length Current number of outstanding requests that are queued for virus scanning Virus Scan Folders Scanned in Total number of folders
277. rated on a schedule Use this feature to automate report generation Configuring custom reports 1 From GFI MailEssentials configuration go to GFI MailEssentials gt Reporting gt Reports 2 Select Custom Reports tab and click New 3 Configure the following options Foption Description Report type Select the type of report to generate Emails Blocked shows total emails blocked by anti spam and anti malware filters for each email direction Inbound Outbound and Internal out of all emails processed Emails Blocked Graph graphically shows total emails blocked by anti spam and anti malware filters for each email direction Inbound Outbound and Internal out of all emails processed Email Direction Graph graphically shows total emails processed for each email direction Inbound Outbound and Internal Email Direction shows total emails processed for each email direction Inbound Outbound and Internal User Report shows the number of blocked and allowed emails for each email address Spam Filter shows the total number of emails blocked by each anti spam filter Spam Filter Graph graphically shows the total number of emails blocked by each anti spam filter Click View Report Preview to preview how report looks like Date filtering Select report date range When selecting Custom date range specify the period to display data for from the Custom From and Custom To calendar controls Email
278. rator To configure a Personal Whitelist Blocklist 1 Logon GFI MailEssentials using a user Active Directory or user logon credentials GFI MailEssentials 5 User Actions 62 GFI MailEssentials E e cn User Console sty Personal Whitelist Blocklist Quarantine Search X R View or modify your personal settings t Personal Whitelist Blocklist Use the Personal Whitelist Blocklist to configure a personal list of allowed and blocked senders specific to your user account Quarantine Search Use the Quarantine Search to find quarantined emails that were originally addressed to your mailbox Screenshot 24 GFI MailEssentials logged on as a user 2 Select Personal Whitelist Blocklist GFI MailEssentials 5 User Actions 63 Personal Whitelist Personal Blocklist ky Personalized blocked emails This page contains the list of email addresses whose email are to always be blocked This list is a personal list so it will only affect the user configuring it Blocked Email addresses Specify the list of email addresses from which you do not want to receive any emails Add Update email address to block Import email addresses from txt file Screenshot 25 Personal Whitelist Blocklist 3 To create a Personal Whitelist select Personal Whitelist tab for personal blocklists select Personal Blocklist tab 4 Key in the email address to whitelist block and click Add Email
279. rch GFI MailEssentials 5 User Actions 65 Quarantine h Use this page to search for quarantined emails General Date Any date time OOOO Search by sender PT Search for text in subject E Spam Search by anti spam filter Any El Screenshot 27 Quarantine Search 3 Specify the required search criteria SEARCH CRITERIA DESCRIPTION Date Select the date range when the email was quarantined Available date ranges are 2 Any date time Since yesterday Last 7 days Last 30 days Custom date range Search by sender Specify a sender who sent the email that was quarantined Search for text in subject Specify the text to search for within quarantined email subject Search by anti spam filter Select the filter that identified the email as spam 4 Click Search GFI MailEssentials 5 User Actions 66 Spam 45 Use this page to approve or delete emails blocked as spam io E Date Time Sender Recipients Subject 10 2 2012 gfisynch_257583 E 11 24 11 60 tcdomainb PM com janeroe tcdomainb com jbox tcdomainb com johndoe tcdomainb com GFISYNCH_25836749 RE 100 tcdomainb com johndoe tcdomainb com GFISYNCH_25758360 tcdomainb com free 10 2 2012 m 11 24 10 PM johndoe tcdo GFISYNCH_25758360 tcdomainb com GFISYNCH_25836749 tcdomainb com jbox tcdomainb c RE 100 mainb com om johndoe tcdomainb com GFISYNCH_25758360 tcdomainb
280. re set to None 7 Click OK to finalize your configuration GFI MailEssentials 7 Anti Spam 152 8 From the Microsoft Exchange System Manager right click GFI AntiSpam Folders and select All tasks gt Propagate settings 9 Select Folder rights checkbox and click OK Microsoft Exchange 2007 1 From Microsoft Exchange Management Shell key in the following command ReplaceUserPermissionOnPFRecursive psl Server server TopPublicFolder GFI AntiSpam Folders User Default Permissions Contributor Replace server with the full computer name 2 When prompted key in y to confirm permissions for each folder This command will set the default permissions for the GFI MailEssentials Public Folders to contributor where users can move emails to the Public Folders but cannot view or modify entries By default administrators are owners of the Public Folders and can view or modify entries For more information about Public Folders permissions refer to http go gfi com pageid ME_PFPermissionsExch2007 Microsoft Exchange 2010 1 From Microsoft Exchange Management Shell change the folder to the Microsoft Exchange scripts folder that can be found in the Microsoft Exchange installation folder If Microsoft Exchange is installed in the default path the scripts folder is stored in C Program Files Microsoft Exchange Server V14 Scripts 2 Key in the following command Repl
281. regarding potential issues that are commonly encountered gt Step by step navigational instructions to access a specific function Bold text Items to select such as nodes menu options or command buttons Italics text Parameters and values that you must replace with the applicable value such as custom paths and file names Code Indicates text values to key in such as commands and addresses For any technical terms and their definitions as used in this manual refer to the Glossary chapter 1 3 Licensing Information on licensing is available on http go gfi com pageid ME_adminManualEN For information on how GFI MailEssentials counts license use refer to http go gfi com pageid ME_RetrieveAndCountUsers GFI MailEssentials 1 Introduction 15 2 About GFI MailEssentials Topics in this chapter 2 1 GFI MailEssentials components 222000 e cece cece cece cece cece ccc eee cece ce oaao aa aaa aaan 16 2 2 Inbound mail filtering occ ccccccccc e eee cece cece e cece ee eeeeeeeeeeeeessereeeeeees 18 2 3 Outbound mail filtering 222 ec ccc ccc ccc eee e cece eee e cece EAE EADE aE Eaa 18 2 4 Email scanning and filtering engines 20 00 00 cece cece cece ccc cece eee cece eee ceceeeeeeeceeeeeeeeeeee 19 2 5 Typical deployment scenarios 2 222222 e cece cece cece cece ee ceeeeeeceeeeececeeeeeeeeeees 21 2 1 GFI MailEssentials components 2 1 1 GFI MailEssentials scan engine The GFI Mail
282. risk level of an executable file by decompiling the executable and detecting in real time what the executable might do Subsequently it compares capabilities of the executable to a database of malicious actions and rates the risk level of the file With the Trojan amp Executable scanner you can detect and block potentially dangerous unknown or one off Trojans before they compromise your network 6 3 1 Configuring the Trojan amp Executable Scanner 1 Go to Email Security gt Trojan amp Executable Scanner General Q Trojan amp Executable Scanner Y Enable Trojan Executable scanner Email checking Y Scan Inbound STMP Email Y scan Outbound SMTP Email Security settings GFI MailEssentials rates executables according to their risk level Select the level of security to use 5 High Security Quarantines almost all executables If the executable contains any signature it will get quarantined Medium Security Quarantines suspicious executables If the executable contains 1 high risk signature or a combination of high risk and low risk signatures it will get quarantined Low Security Quarantines executables that are most probably malicious If the executable contains at least 1 high risk signature it will get quarantined Screenshot 46 Trojan and Executable Scanner General Tab GFI MailEssentials 6 Email Security 91 2 Select Enable Trojan amp Executable Scanner to a
283. rnet facing section of a network that is not part of the internal network Its purpose typically is to act as a gateway between internal networks and the internet Directory harvesting Email attacks where known email addresses are used as a template to create other email addresses Disclaimer A statement intended to identify or limit the range of rights and obligations for email recipients DMZ See Demilitarized Zone DNS See Domain Name System DNS MX See Mail Exchange Domain Name System A database used by TCP IP networks that enables the translation of hostnames to IP addresses and provides other domain related information Email headers Information that precedes the email text body within an email message This includes the sender recipient subject sending and receiving time stamps etc Email monitoring rules Rules which enable the replication of emails between email addresses Exploit An attack method that uses known vulnerabilities in applications or operating systems to compromise the security of a system False negatives Spam emails that are not detected as spam GFI MailEssentials 17 Glossary 281 False positives Legitimate emails that are incorrectly identified as spam G Gateway The computer server in a LAN that is directly connected to an external network In GFI MailSecurity gateway refers to the email servers within the company that first receive email from external domains Greylis
284. rouping Group by Week Save As ew Custom Repor Screenshot 18 Creating a report 2 From the Report List tab configure the following report options GFI MailEssentials 4 Monitoring status 53 CA f Description Report type Select the type of report to generate gt gt gt gt gt gt gt Emails Blocked shows total emails blocked by anti spam and anti malware filters for each email direction Inbound Outbound and Internal out of all emails processed Emails Blocked Graph graphically shows total emails blocked by anti spam and anti malware filters for each email direction Inbound Outbound and Internal out of all emails processed Email Direction Graph graphically shows total emails processed for each email direction Inbound Outbound and Internal Email Direction shows total emails processed for each email direction Inbound Outbound and Internal User Report shows the number of blocked and allowed emails for each email address Spam Filter shows the total number of emails blocked by each anti spam filter Spam Filter Graph graphically shows the total number of emails blocked by each anti spam filter Click View Report Preview to preview how report looks like Date filtering Select report date range When selecting Custom date range specify the period to display data for from the Custom From and Custom To calendar controls Email directions Select a particu
285. rs of the mail client example Microsoft Outlook locate the GFI AntiSpam Folders gt This is spam email public folder 2 Drag and drop the spam email to the This is spam email folder GFI MailEssentials 7 Anti Spam 155 8 Content Filtering Content Filtering engines enable administrators to control the content of emails These engines scan the content of emails and attachments and block emails containing content matching the content filtering rules Topics in this chapter 8 1 Keyword Filtering 8 1 1 Creating a Keyword Filtering rule 8 1 2 Enabling disabling Rules 8 1 3 Removing content filtering rules 8 1 4 Modifying an existing rule 8 1 5 Changing rule priority 8 2 Attachment Filtering 8 2 1 Creating an Attachment Filtering rule 8 2 2 Enabling disabling rules 8 2 3 Removing attachment rules 8 2 4 Modifying an existing rule 8 2 5 Changing the rule priority 8 3 Advanced Content Filtering 8 3 1 Creating Advanced Content Filtering rules 8 3 2 Removing Rules 8 3 3 Enabling Disabling Rules 8 3 4 Sorting Rules 8 4 Decompression Engine 8 4 1 Configuring the decompression engine filters 8 4 2 Enable disable decompression filters 8 1 Keyword Filtering Keyword Filtering enables you to set up rules that filter emails with particular keywords or a combination of keywords in the body or subject of the email A rule is composed of Keywords to block in the email body subject or attachment Actions to take w
286. rt Protocol An internet standard used for email transmission across IP networks SMTP See Simple Mail Transport Protocol Spam actions Actions taken on spam emails received e g delete email or send to Junk email folder SSL See Secure Sockets Layer T Trojan horse Malicious software that compromises a computer by disguising itself as legitimate software V Virus scanning engine A virus detection technology implemented within antivirus software that is responsible for the actual detection of viruses W WebDAV An extension of HTTP that enables users to manage files remotely and interactively Used for managing emails in the mailbox and in the public folder in Microsoft Exchange Whitelist A list of email addresses and domains from which emails are always received GFI MailEssentials 17 Glossary 285 Zombie An infected computer that is made part of a Botnet through malware GFI MailEssentials 17 Glossary 286 18 Index A Active Directory 20 28 34 42 62 65 102 107 151 197 202 223 241 249 251 269 Antispam 51 149 238 Antivirus 19 26 27 32 51 68 69 73 77 81 85 89 177 188 Attachment Filtering 19 163 179 220 223 Auto replies 15 16 18 205 B Bayesian Analysis 20 27 102 128 145 220 262 266 C Cluster 26 D Dashboard 14 45 46 49 51 52 260 Database 20 45 47 52 57 58 91 102 105 110 119 129 146 209 211 223 261 262 265 272 273 DEP 42 Direc
287. s DNS Server Specify the DNS server to be used for domain lookups The DNS server is used for domain look ups and by spam filters which query DNS blocklists Use the same DNS server used by this server Usean alternate DNS Server m Test DNS Server lt Back Cancel Screenshot 3 DNS Server settings 2 In the DNS Server dialog select Use the same DNS server used Select this option to use the same DNS server that is used by the operating system by this server where GFI MailEssentials is installed Use an alternate DNS server Select this option to specify a custom DNS server IP address Click Test DNS Server to test connection with the specified DNS server If test is unsuccessful specify another DNS server Click Next GFI MailEssentials 3 Installation 36 2 GFI MailEssentials Post Installation Wizard Ea Es Proxy Settings Specify how this server connects to the Internet GFI MailEssentials requires a connection to the internet to download anti spam and anti malware updates This machine connects directly to the internet This machine connects to the internet through a proxy server Screenshot 4 Proxy settings 3 In the Proxy Settings dialog specify how GFI MailEssentials connects to the Internet If the server connects through a proxy server click Configure proxy server and specify proxy settings Click Next 0 GFI MailEssentials Post Installation Wizard e x Inbound e
288. s Security Ports Server Tasks Internet Protocols MTAs Miscellaneous Transactional Logging Shared Mail Notes Network Ports Internet Ports Proxies SSL key file name keyfile kyr SSL protocol version for use E with all protocols except HTTP Negotiated Accept SSL site certificates C Yes No Accept expired SSL certificates Yes No SSL ciphers RC4 encryption with 40 bit key and MD5 MAC Modify RC4 encryption with 128 bit key and MD5 MAC RC4 encryption with 128 bit key and SHA 1 MAC DES encryption with 56 bit key and SHA 1 MAC Triple DES encryption with 168 bit key and SHA 1 MAC Enable SSL V2 T Yes SSL V3 is always enabled Web Directory Mail DIIOP Remote Debug Manager Server Controller TCPIIP port number TCPIIP port status Enforce server access settings Authentication options Name amp password Anonymous SSL port number SSL port status Authentication options Client certificate Name amp password Anonymous 389 Enabled No Yes Yes 636 Disabled No No Yes Screenshot 156 Enable Anonymous Authentication 15 3 Lotus Domino Anti Spam Folder Configuration 1 From Lotus Notes Administrator create a database with the normal MAIL85 NTF template that is used as the public folder When the database is created right click the database from the files section and select Access Control Configure the user or group or server to have access on
289. s gt Vipre GFI MailEssentials 6 Email Security 68 General Y VIPRE AntiVirus Options JV Enable Gateway Scanning SMTP J Scan Inbound SMTP Email J Scan Outbound SMTP Email J Scan Internal and Information Store Items VIPRE Scanner Engine Version Information Signature file version 10925 Signature release date 2011 10 31T03 30 00 Engine licensing Engine Licensing Status Licensed Automatic Updates Licensing Status License expires 1 25 2013 Screenshot 29 Vipre configuration 2 Select Enable Gateway Scanning SMTP check box to scan emails using this Virus Scanning Engine 3 Select whether to scan inbound and or outbound emails using this Virus Scanning Engine Scan inbound SMTP email Select this option to scan incoming emails Scan outbound SMTP email Select this option to scan outgoing emails 4 If you installed GFI MailEssentials on a Microsoft Exchange machine you will also have the option to scan internal emails and the Information Store Select Scan Internal and Information Store Items note To use the Information Store Virus Scanning feature you must enable the option from Information Store Protection node For more information refer to Information Store Protection page 88 note In this page you can also review the antivirus engine licensing and version information GFI MailEssentials 6 Email Security 69 Q Email Exploit Actions
290. s Quarantine Store go to GFI MailEssentials gt Quarantine 9 4 1 Viewing quarantined emails 220 0 00 2 c coc ce cece cece cece e cece ee eeeeeeeeeececeeeeeeeeees 188 9 4 2 Approving Quarantined Emails 0000000000 00000000000000 e cece cece oaaao aaan aonana 189 GFI MailEssentials 9 Quarantine 187 9 4 3 Permanently Delete Quarantined Emails 00 0 00000 c cece cece cece ccc cece ecee cece eeceeeeeeeeeeeees 190 9 4 1 Viewing quarantined emails Searching within the Quarantine or using default or customized search folders yields a list of quarantined emails Malware and Content 3 Spam 0 os Use this page to approve or delete emails blocked due to malware content E Date Sender Recipients Subject Module Reason Source 3 27 2012 1 43 50 me pl AA a Threat te Keyword Triggered rule Test Gatewa ty PM administrator tcdomainb com jsmith tcdomainb com a a ite SMTP y fm 3 27 2012 1 43 28 Threat t K d Tri d rule Test Gat RN administrator tcdomainb com administrator tcdomainb com iai emer Miia cu sp PM st Filtering rule SMTP f 3 27 2012 1 43 07 Threat t K d Tri d rule Test Gat La ae administrator tcdomainb com administrator tcdomainb com paras error riggere di ad PM st Filtering rule SMTP Kid ji Mm Page size 10 v 3 items in 1 pages Screenshot 101 Search Results note The results page may be split in two tabs Malware and Content Emails blocked by anti malware engine
291. s and content filtering rules gt Spam Emails blocked by anti spam filters 1 Choose Malware and Content tab or Spam tab to view quarantined emails for the specific quarantined email type The results page provides the following functions and details Back Returns you to the previous screen Approve Enables you to approve a single or multiple emails For more information refer to Approving Quarantined Emails page 189 Delete Deletes a single or multiple emails For more information refer to Permanently Delete Quarantined Emails _ page 190 Rescan Rescans emails using current antivirus signatures which may be more up to date than the antivirus signatures that quarantined the email in the first place Select one or more emails and click Rescan to rescan Module The module that identified the email as to be quarantined Reason The reason rule that triggered the action to quarantine the email Sender The email address of the sender Recipients The email address of the recipient Subject The email subject as sent by the sender GFI MailEssentials 9 Quarantine 188 option Description OOOO Date The date when email was quarantined Source The location from where the email was quarantined Item Enables selecting a source to filter the display with Available options are Source View all Information Store VSAPI Gateway SMTP Information Store Transport Page size Enables customizing how many emai
292. s autowhitelist mdb gt C MailEssen tials Settings autowhitelist mdb Done Copying C Program Files GFI MailEssentials Data weights bsp gt C MailEssent ials Settings weights bsp Done Copying C Program Files GFI MailEssentials userlist mdb gt C MailEssentials Settings userlist mdb Done Copying C Program Files GFI MailEssentials data reports mdb gt C MailEssent ials Settings reports mdb Done Done press lt Enter gt to continue Screenshot 144 Exporting settings via command line 4 Restart the services stopped in step 1 Importing settings via command line 1 Stop the following services GFI List Server gt GFI MailEssentials Enterprise Transfer GFI MailEssentials Legacy Attendant GFI MailEssentials AntiSpam Attendant GFI POP2Exchange IIS Admin service 2 From command prompt change directory to the GFI MailEssentials installation root folder 3 Key in meconfigmgr import c MailEssentials Settings verbose replac Where gt C MailEssentials Settings location where the files to import are located Replace with the path where files to be imported are located verbose instructs the tool to display progress while copying the files gt replace instructs the tool to overwrite existing files in the destination folder GFI MailEssentials 12 Miscellaneous topics 250 LD WARNING The import process replaces the configuration files with t
293. s during SMTP transmission before the email is received FILTER DESCRIPTION ENABLED BY DEFAULT Directory Harvesting Directory harvesting attacks occur when spammers try to guess email addresses by attaching well known usernames to your domain The majority of the email addresses are non existent Greylist The Greylist filter temporarily blocks incoming emails received from unknown No senders Legitimate mail systems typically try to send the email after a few minutes spammers simply ignore such error messages 2 4 5 Other engines The following engines help to identify safe emails FILTER DESCRIPTION ENABLED BY DEFAULT Whitelist The Whitelist contains lists of criteria that identify legitimate email Emails that match these Yes criteria are not scanned by anti spam filters and are always delivered to the recipient New The New Senders filter identifies emails that have been received from senders to whom No Senders emails have never been sent before GFI MailEssentials 2 About GFI MailEssentials 20 2 5 Typical deployment scenarios This chapter explains the different scenarios how GFI MailEssentials can be installed and configured 2 5 1 Installing directly on Microsoft Exchange server 2 00 0 2 cc cece ccc c ccc ee cece ce ceceeeeeeeeeceeeees 21 2 5 2 Installing on an email gateway or relay perimeter server 2 2 0 2 22 e cece cece cece e cee eeeeeeeeeee 21 2 5 1 Installing directly on Micr
294. s email relaying setup To achieve this 1 Go to Start gt Control Panel gt Administrative Tools gt Internet Information Services IIS Manager 2 In the left pane expand the respective server node Right click on Default SMTP Virtual Server and select Properties 3 From the Access tab select Relay 4 Select Only the list below and click Add 5 Specify IP s of the internal mail server s that are allowed to route emails through your mail relay server You can specify Single computers Authorize one specific machine to relay email through this server Use the DNS Lookup button to lookup an IP address for a specific host Group of computers Authorize specific computer s to relay emails through this server Domain Allow all computers in a specific domain to relay emails through this server note The Domain option adds a processing overhead that can degrade SMTP service performance This is due to the reverse DNS lookup processes triggered on all IP addresses within that domain that try to route emails through this relay server Step 5 Enable your mail server to route emails via GFI MailEssentials Microsoft Exchange Server 2003 Set up SMTP connectors that forward all emails to GFI MailEssentials 1 Start Exchange System Manager 2 Right click Connectors click New gt SMTP Connector and specify a connector name 3 Select Forward all mail through this connector to the following smart host
295. s installed on Microsoft Exchange Server 2003 Move emails in txt format from the failedmails folder to the following folder lt Microsoft Exchange installation path gt Exchsrvr Mailroot vsi 1 PickUp GFI MailEssentials installed on Gateway server Move emails in txt format from the failedmails folder to the following folder lt drive gt Inetpub mailroot Pickup 12 3 2 Failed emails notifications GFI MailEssentials can be configured to notify the administrator when an email fails processing The administrator s email address can be configured from GFI MailEssentials General Settings node For more information refer to Administrator email address page 219 1 Launch the GFI MailEssentials Switchboard from Start gt Programs gt GFI MailEssentials gt Switchboard and select Other tab GFI MailEssentials 12 Miscellaneous topics 232 E GFI MailEssentials Switchboard ES Ul Mode Troubleshooting Tracing Quarantine Other pS Configure other advanced options Remoting Ports Remoting ports enable the different GFI MailEssentials modules to communicate with each other Ports which are used by third parties will result in loss of functionality and conflicts Current Ports 8013 Email Security Attendant 8015 Email Security Auto updater 8021 Anti Spam Attendant M Failed Mail Notifications This option sends notifications to the administrator s email address when
296. s is legitimate email public folder 2 Drag and drop emails to the This is legitimate email folder Managing spam While GFI MailEssentials starts identifying spam emails right out of the box there may be instances where spam makes it through undetected to the users mailbox Typically this might be either due to configuration settings that have not yet been performed or to new forms of email spam to which GFI MailEssentials has not yet adapted itself In both cases these situations are resolved when GFI MailEssentials is configured to capture such spam In these cases users should add such emails to Add to blocklist and This is spam email folders to teach GFI MailEssentials that the email in question is spam GFI MailEssentials 7 Anti Spam 154 notes 1 In Microsoft Outlook dragging and dropping email moves the email to the selected folder To retain a copy of the email hold down the CTRL key to copy the email rather than moving it 2 Detailed information how to create the GFI AntiSpam folders is included in this manual For more information refer to Enabling Public Folder Scanning page 149 Adding senders to the Email Blocklist 1 In the public folders of the mail client example Microsoft Outlook locate the GFI AntiSpam Folders gt Add to blocklist public folder 2 Drag and drop emails to the Add to blocklist public folder Use spam emails to teach the Bayesian filter 1 In the public folde
297. se that are most significant in identifying whether the email is spam or not are identified Using these words the Bayesian filter calculates the probability of the new message being spam If the probability is greater than a threshold the message is classified as spam note For more information on Bayesian Filtering and its advantages refer to http go gfi com pageid ME_Bayesian 14 0 1 Training the Bayesian Analysis filter note The Bayesian Analysis filter can also be trained using Public folders For more information refer to Configuring the Bayesian filter page 128 It is recommended that the Bayesian Analysis filter is trained through the organization s mail flow over a period of time It is also possible for Bayesian Analysis to be trained from emails sent or received before GFI MailEssentials is installed by using the Bayesian Analysis wizard This allows Bayesian Analysis to be enabled immediately This wizard analyzes sources of legitimate mail for example a mailbox sent items folder spam mail for example a mailbox folder dedicated to spam emails Step 1 Install the Bayesian Analysis wizard The Bayesian Analysis wizard can be installed on A machine that communicates with Microsoft Exchange to analyze emails in a mailbox A machine with Microsoft Outlook installed to analyze emails in Microsoft Outlook 1 Copy the Bayesian Analysis wizard setup file bayesianwiz exe to the cho
298. sen machine This is located in GFI MailEssentials 14 Appendix 1 Bayesian Filtering 266 GFI MailEssentials installation path AntiSpam BSW 2 Launch bayesianwiz exe and click Next in the welcome screen Select the installation folder and click Next 4 Click Next to start installation 5 Click Finish when installation is complete Step 2 Analyze legitimate and spam emails To start analyzing emails using the Bayesian Analysis wizard 1 Load the Bayesian Analysis wizard from Start gt Programs gt GFI MailEssentials gt GFI MailEssentials Bayesian Analysis Wizard 2 Click Next in the welcome screen 3 Choose whether to Create a new Bayesian Spam Profile bsp file or update an existing one Specify the path where to store the file and the filename Update the Bayesian Spam profile used by the Bayesian Analysis filter directly when installing on the same machine as GFI MailEssentials Click Next to proceed 4 Select how the wizard will access legitimate emails Select Use Microsoft Outlook profile configured on this machine Retrieves emails from a Microsoft Outlook mail folder Microsoft Outlook must be running to use this option Connect to a Microsoft Exchange Server mailbox store Retrieves emails from a Microsoft Exchange mailbox Specify the logon credentials in the next screen Do not update legitimate mail ham in the Bayesian Spam profile skip retrieval of legitimate emails Skip
299. sentials and GFI MailSecurity are installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Updating to a newer versions of GFI MailEssentials The GFI MailEssentials installer also enables you to upgrade an existing version of the current generation of GFI MailEssentials to a newer version for example from a Beta version to Release version To upgrade launch the latest installer on the server where GFI MailEssentials is installed After accepting the End User License Agreement installer detects existing installation and shows the previous version installation path Click Next to upgrade and Finish on completion note For upgrades on Microsoft Exchange 2007 2010 the Post Installation wizard is displayed after the installation and only displays the list of Microsoft Exchange server roles detected and the GFI MailEssentials components required Click Next to install the required GFI MailEssentials components and Finish to complete Post Install wizard 3 5 Post Install actions To ensure GFI MailEssentials scanning and filtering system is effectively up and running perform the following post install actions GFI MailEssentials 3 Installation 41 Add GFI MailEssentials Data Execution Prevention DEP is a set of hardware and software technologies that scanning engines to the perform memory checks to help prevent malicious code from running on as
300. sentials displays the list of users groups found Select the users groups to add and click Submit 5 For the newly added users groups select the features to allow access to Full Access User can access and configure all features of the product Quarantine Access Allows access to quarantine search and search folders Reporting Access RSS Access 6 Click Apply Enables users to generate reports Allows users to subscribe to the quarantine RSS feeds GFI MailEssentials 11 General Settings 226 12 Miscellaneous topics Topics in this chapter 12 1 Virtual directory names occ e cece eee cece eee cece eeeeeeeeeeeeeeeeeeeeeeeees 227 12 2 User interface mode ns 227 12 3 Failed emails Lavin et dt ee 231 12 4 Tracing es 233 12 5 POP2Exchange Download emails from POP3 server 20 2 cc cccece ccc eeccccececeeececeeeeeee 235 12 6 Moving spam email to user s mailbox folders 2 0 2 2 c ccc cece ce cee eeceeeeeeeeeeeees 238 12 7 Move spam to Exchange 2010 folder 0 222000 cece ccc cece cece eee ee cece ceceeeeeceeeceeeeees 240 12 8 Synchronizing configuration data 0 00000 c cece eee e cece cece cece ceeeeeeeeeeeeeees 241 12 9 Disabling email processing 2 c cece e eee cece eee cece eeceeeeeeeeeeceeeeeeeeeees 252 12 10 Email backup before and after processing 2 00 2 2 2 c cece cece cece ccc e cece cece ec eeeeeeeeeceeeeees 253 12 11 Remoting ports oo ee ee ee ee ee ee
301. ser receives or opens the email HTML Sanitizer The HTML Sanitizer scans and removes scripting code within the email body and attachments 2 4 2 Content filtering engines The following engines scan the content of emails checking for parameters matching configured rules Email scanning engine Description Keyword Filtering Keyword Filtering enables you to set up rules that filter emails with particular keywords or a combination of keywords in the body or subject of the email Attachment Filtering Attachment Filtering allows you to set up rules to filter what types of email attachments to allow and block on the mail server Decompression engine The Decompression engine extracts and analyzes archives compressed files attached to an email Advanced Content Advanced Content filtering enables scanning of email header data and content using Filtering advanced configurable search conditions and regular expressions regex 2 4 3 Anti spam filtering engines GFI MailEssentials 2 About GFI MailEssentials 19 The following engines scan and block spam emails FILTER DESCRIPTION ENABLED BY DEFAULT SpamRazer An anti spam engine that determines if an email is spam by using email Yes reputation message fingerprinting and content analysis Anti Phishing Blocks emails that contain links in the message body pointing toknown Yes phishing sites or if they contain typical phishing keywords Directory Harvesting Directory harvesting attacks o
302. sion 5400 1158 Signatures 665075 avvscan_dat build date 6 5 2012 avvnames dat build date 6 5 2012 avvclean_dat build date 6 5 2012 Engine licensing Engine Licensing Status Licensed License expires 25 01 2013 Screenshot 41 McAfee configuration GFI MailEssentials 6 Email Security 84 2 Select Enable Gateway Scanning SMTP check box to scan emails using this Virus Scanning Engine 3 Select whether to scan inbound and or outbound emails using this Virus Scanning Engine CA Scan inbound SMTP email Select this option to scan incoming emails Scan outbound SMTP email Select this option to scan outgoing emails 4 If you installed GFI MailEssentials on a Microsoft Exchange machine you will also have the option to scan internal emails and the Information Store Select Scan Internal and Information Store Items note To use the Information Store Virus Scanning feature you must enable the option from Information Store Protection node For more information refer to Information Store Protection page 88 note In this page you can also review the antivirus engine licensing and version information 5 McAfee Antivirus can also be used to block emails with attachments that contain macros Enable this feature from the Macro Checking area by selecting Block all documents containing macros Q Email Exploit Actions Actions Select the actions to perform when an exploit is detected
303. sion information FTP 80 HTTP Used by GFI MailEssentials to download product patches updates for gt SpamRazer gt Anti Phishing Bayesian Analysis Antivirus definition files Trojan and executable scanner gt Email Exploit engine GFI MailEssentials downloads from the following locations http update gfi com gt http update gfisoftware com gt http support gfi com gt mailshell com spamrazer gfi com Y note GFI MailEssentials can also be configured to download updates through a proxy server For more information refer to Proxy settings page 221 8013 8015 These ports are used for inter process communication No firewall configuration is required to allow 8021 connections to or from the remoting ports since all the GFI MailEssentials processes run on the same Remoting server O NOTE Ensure that no other applications except GFI MailEssentials are listening on these ports If other applications are using this ports these ports can be changed For more information refer to Remoting ports page 254 GFI MailEssentials 3 Installation 27 389 636 This port is used in these scenarios LDAP LDAPS gt Microsoft Exchange environment Required if the server running GFI MailEssentials does not have access cannot get list of users from Active Directory for example in a DMZ environment or other environments which do not use Active Directory Lotus Domino mail server environ
304. sk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 70 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 31 Virus scanning engine updates 8 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 9 From Downloading option list select one of the following options Only check for Select this option if you want GFI MailEssentials to just check for and notify the administrator when updates updates are available for this engine This option will NOT download the available updates automatically Check for Select this option if you want GFI MailEssentials to check for and auto
305. spoofing is an anti spam filter which blocks emails from one of the local domains but which were sent from an unauthorized IP address Options E Enable Anti Spoofing Authorized IP CIDR Authorized IP address list Serv m m r Description No records to display Use authorized IP addresses from perimeter servers list Recommended Do not block authenticated connections Screenshot 64 GFI MailEssentials Anti Spoofing filter 2 Select Enable Anti Spoofing to enable Anti Spoofing filter 3 In the SMTP Server field provide the SMTP server where GFI MailEssentials checks for email recipient addresses Also provide a description for the server in the Description field note The SMTP Server field supports the following types of entry gt A single IP Address gt A CIDR range for example 192 0 2 1 24 4 Click Add SMTP Server to save SMTP server details note To remove previously added SMTP servers select an SMTP server from the Authorized IP Address list and click Remove Selected GFI MailEssentials 7 Anti Spam 118 By default Use authorized IP addresses from perimeter server and Do not block authenticated connections are enabled It is not recommended that these options are disabled note Do not block authenticated connections check boxdoes not apply for Microsoft IIS and Microsoft Exchange 2003 It only works with Exchange 2007 or later 7 1
306. st Limit the amount of entries in the lists to 10 000 1 Ensure that your license key is valid 2 Ensure that the required ports are open and that your firewall is configured to allow connections from the GFI MailEssentials server For more information refer to Firewall port settings page 27 3 Ensure that if applicable proxy server settings for connection to Internet are correct To verify the operation of Greylist Step 1 Confirm that Greylist is enabled From the Greylist properties ensure that Enable Greylist is selected Step 2 Verify excluded addresses From the IP and Email exclusions in Greylist properties ensure that there are no incorrect exclusions such as com Step 3 Use esentutl exe to ensure the Greylist database is not corrupted For more information refer to http go0 gfi com pageid ME_esentutl Some Spam emails contain a fake SMTP FROM email address consisting of the same domain as the recipient This may seem as if the email is coming from a local user 1 Enable Sender Policy Framework from within SpamRazer anti spam filter to block emails originating from spoofed addresses For more information refer to SpamRazer page 102 2 Create an SPF record for your domain For more information refer to http go gfi com pageid ME_CreateSPFRecord 3 Ensure that SpamRazer is configure to run at a higher priority than the Whitelist module For more information refer to Sorting anti spam filters
307. sting Option In the File field specify the path to your existing Microsoft Access database that contains the newsletter discussion subscribers From the Table drop down list select the table where the subscribers list is stored Specify SQL server name logon credentials and database used to store newsletter discussion subscribers list Specify SQL server name logon credentials and select the database and table where subscribers list is stored 6 For all database types with the Automatic option click Finish button to end the wizard or click Next to continue setup 7 If you are confi guring an existing Microsoft SQL Server set up the connection to the Microsoft SQL Server If configuring a Microsoft Access Database configure the path to a file and select a table within the Microsoft Access Database to use 8 Select a variable from the Variables list and the corresponding Database Field option and click Map Field button to Map the required fields with the custom fields found in the database Click Finish to finalize your configuration The fields to map are FirstName_ Map to a string field containing the first name of a subscriber To LastName_ Map to a string field containing the last name of a subscriber To Company Map to a string field containing the company name of a subscriber Email_To Map to a string field containing the email address of a subscriber Unsubscribe Map toan integer or Boolean value field
308. strator whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 7 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options v Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options T Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 37 Virus scanning engine updates 8 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 9 From Downloading option list select one of the following opt
309. t Keyword Whitelist 8 Full Emai Email Blocklist 9 Full Email t IP DNS Blocklist 10 Full Emai URI DNS Blocklist 11 Full Email t Bayesian Analysis 12 Full Emai Language Detection 13 Full Emai t Spam Keyword Checking 14 Full Emai t Screenshot 75 Assigning filter priorities 2 Select a filter and click up button to assign a higher priority or click down button to assign a lower priority note Click Default Settings to restore the filters order to default 3 Click Apply 7 4 Spam Digest The spam digest is a short report sent to an administrator or user via email This report lists the total number of emails processed by GFI MailEssentials and the number of spam emails blocked over a specific period of time since the last spam digest 7 4 1 Configuring spam digests Administrator spam digest 1 Goto Anti Spam gt Spam Digest GFI MailEssentials 7 Anti Spam 139 Administrator Digest Recipient Digest Recipient List O a 8 Enable and configure the administator s spam email digest The administrator s spam digest is an email sent to the administrator containing the total email processed and the total spam blocked per spam filter V Send administrator spam digest Options Frequency Day Time ay TAE 800 Digest Contents 9 Total count of processed email and spam V Total spam captured per spam filter Screenshot 76 Spam dig
310. t recipients equal or exceed edit box This value should account for users who send legitimate emails with mistyped email addresses or to users no longer employed with the company It is recommended that this value is at least 2 4 Provide an email address and click Test to verify Directory Harvesting settings Repeat the test using a non existent email address and ensure that Active Directory lookup fails 5 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 note If Directory Harvesting is set to run at SMTP level only the Log Occurrence option will be available in the Actions tab 6 Click Apply Stage 2 Selecting if Directory Harvesting should be done during the SMTP transmission 1 Navigate to Anti spam gt Filter Priority and select SMTP Transmission Filtering tab 2 Select an option from the following option Descriptio Switch to full email Filtering is done when the whole email is received filtering Switch to Filtering is done during SMTP transmission by checking if the email recipients exist before SMTP transmission the email body and attachment are received filtering O NOTE If this option is chosen Directory Harvesting will always run before the other spam filters 3 Click Apply GFI MailEssentials 7 Anti Spam 109 7 1 4 Email blocklist The Email Blocklist is a cust
311. t Reports 2 From the Custom Reports tab select a report to delete 3 Click Delete 4 2 6 Searching the reporting database GFI MailEssentials stores some properties of all emails processed in the reporting database GFI MailEssentials enables you to search the reporting database to find processed emails To search the reporting database 1 From GFI MailEssentials Configuration go to GFI MailEssentials gt Reporting gt Search Search Email Q Use this page to search for emails in the reporting database Specify search date range Specify the days through which to search for emails sent and received by users Start Date End Date 3 27 2012 E 3 27 2012 E E User Total Emails Y Y administrator tcdomainb com 3 amp jsmith tcdomainb com 1 Click an email address to view emails sent received Screenshot 20 Searching the reporting database 2 Specify search criteria GFI MailEssentials 4 Monitoring status 57 Search criteria Description Start date amp End Select date range to filter emails from that period Click Search date User Filter email address results Key in number and click N to specify conditions Total emails Filter users by the amount of emails processed Key in number and click 7 to specify conditions 3 The list of matching users is displayed Click an email address to view detailed report of emails processed for that email address amp administrator tc
312. t directly to the internal Active Directory because of Firewall settings Use LDAP lookups to connect to the internal Active Directory of your network and ensure to enable default port 389 on your Firewall Use LDAP Select this option when GFI MailEssentials is installed in SMTP mode and or when GFI MailEssentials does lookups not have direct access to the full list of users 4 Specify the LDAP server name or IP address in the Server text box note In an Active Directory environment the LDAP server is typically the Domain Controller or Global Catalog 5 Specify the port number default 389 in the Port text box If connection to the LDAP server is via SSL select Use SSL and the default port changes to 636 note Ensure that the port is enabled from the Firewall 6 Click Update DN list to populate the Base DN list and select the Base DN that is the top level in the Active Directory hierarchy 7 If your LDAP server requires authentication specify the User and Password Alternatively if no authentication is required select Anonymous bind 8 Test your configuration settings by specifying a valid email address in the Email address box and click Test If the email address is not found review the configuration settings 9 To log Nonexistent Recipient activity to a log file select Log occurrence to this file and specify path and file name including txt extension to a custom location on disk where to store the log
313. t filter An anti spam filter that blocks emails sent from spammers that do not resend a message when a retry message is received H Ham Legitimate e mail HTML Sanitizer A filtering module within GFI MailSecurity that scans and removes html scripting code from emails HTTP Hypertext Transfer Protocol A protocol used to transfer hypertext data between servers and internet browsers IIS See Internet Information Services IMAP See Internet Message Access Protocol Internet Information Services A set of Internet based services created by Microsoft Corporation for internet servers Internet Message Access Protocol One of the two most commonly used Internet standard protocols for e mail retrieval the other being POP3 LDAP See Lightweight Directory Access Protocol Lightweight Directory Access Protocol An application protocol used to query and modify directory services running over TCP IP GFI MailEssentials 17 Glossary 282 List server A server that distributes emails sent to discussions lists and newsletter lists and manages subscription requests Mail Exchange The DNS record used to identify the IP addresses of the domain s mail servers Malware All malicious types of software that are designed to compromise computer security and which usually spread through malicious methods MAPI See Messaging Application Programming Interface MDAC See Microsoft Data Access Components Messaging Application Pro
314. t must be the last stop for emails destined for the Internet In this way GFI MailEssentials checks all inbound and outbound mail it is delivered to the recipients The MX record of your domain must point to the mail relay server note If your ISP manages the DNS server ask this provider to update it for you Since the new mail relay server must first receive all inbound email update the MX record of your domain to point to the IP of the new mail relay Gateway server Verify the MX record of your DNS server as follows 1 From command prompt type nslookup and press Enter 2 Typeset type mx and press Enter 3 Type your mail domain and press Enter The MX record should return a single IP that corresponds to the IP address of the machine running GFI MailEssentials GFI MailEssentials 15 Appendix 2 Lotus Domino 270 cx Administrator Command Prompt nslookup Microsoft Windows Version 6 1 76611 Copyright lt c gt 2669 Microsoft Corporation All rights reserved C Users Administrator gt ns lookup megateway deutest com 192 168 1 132 gt set type mx gt devtest com megateway devtest com 192 168 1 132 devtest com MK preference 16 mail exchanger megateway devtest com megateway devtest com internet address 192 168 1 132 Screenshot 152 Verifying the MX record of the DNS 4 Test the new mail relay server Before proceeding to install GFI MailEssentials verify that the new mail relay serve
315. t to configure any required role services and features and click Install to start the installation 5 Click Close to finalize configuration Step 2 Create SMTP domain s for email relaying 1 Go to Start gt Control Panel gt Administrative Tools gt Internet Information Services IIS Manager 2 In the left pane expand the respective server node Right click Default SMTP Virtual Server and select Properties 4 Expand Default SMTP Virtual Server node 5 Right click Domains and select New gt Domain 6 Select Remote and click Next 7 Specify organization domain name for example test mydomain com and click Finish Step 3 Enable email relaying to your Microsoft Exchange server 1 Right click on the new domain and select Properties 2 Select Allow the Incoming Mail to be Relayed to this Domain GFI MailEssentials 3 Installation 29 3 Select Forward all mail to smart host and specify the IP address of the server managing emails in this domain IP address must be enclosed in square brackets for example 123 123 123 123 to exclude them from all DNS lookup attempts 4 Click OK to finalize your configuration Step 4 Secure your SMTP email relay server If unsecured your mail relay server can be exploited and used as an open relay for spam To prevent this it is recommended that you specify which mail servers can route emails through this mail relay server for example allow only specific servers to use thi
316. tachment Filtering Actions Tab 0 0 2 2 cc ccccecccceccccceccceeecccececcceeeeceeeteceees 166 Screenshot 89 Content Filtering Users Folders Tab 2 0 ccccccecccecccceccccccecccceeccceecccceeeeceees 167 Screenshot 90 Add users to a Content Filtering rule 00 0 20 c cece ccc ecccccecccececccceccceeeccceeeccees 168 Screenshot 91 Adding a new Advanced Content Filtering rule 0 0 20 e cece 170 Screenshot 92 Actions Tab ici ra 171 Screenshot 93 Content Filtering Users Folders Tab 0 2 20cc cece cece ee eec cece ceeceeeceeneeeeseeues 172 Screenshot 94 Add users to a Content Filtering rule 2 2 2 000 coe ccc cece c cece eee eeeeeeeaees 173 Screenshot 95 Decompression engine checks ce eee ccccccececccccececececcccceeececccceeeeeeeccceeees 174 Screenshot 96 Malware and Spam Search Area 2 2 20 ccccccccecccccecccccecccececccececcceeecceeeccceeesaees 181 Screenshot 97 Malware and Spam Search Area 2 0 2 2 cccceccccecccccecccccececececccceeccceeccceeececeeeceees 182 Screenshot 98 Spam Only search area 2 oie cece cece eee e cena cence ene e ene ceneeeneeeneeenseeneeens 184 Screenshot 99 Default and custom search folders 2 2 2 0 ccc ccc cece cece cence ence ence ence ene eenseeneeenseeaes 185 Screenshot 100 Default search folders 2 0 ccc eee eee cece eee eee eee ene e ene c ene e ence ene c ene eeeeseneeenneennes 186 Screenshot 101 Search Results _ 2
317. tc or Active Directory fields name title telephone numbers etc Select the variable to add and click OK note The recipient display name and email address variables will only be included if the email is sent to a single recipient If emails are sent to multiple recipients the variables are replaced with recipients 12 Specify the encoding to be used for the plain text disclaimer if the email body s character set is not plain text option Description Convert to unicode Converts both email body and disclaimers to Unicode so that both are properly displayed Use character set of the email Disclaimer is converted to the email body s character set body Y NOTE If this option is selected some of the disclaimer text might not be displayed properly 13 Import or export a plain text disclaimer format using the Import and Export buttons 14 From the Exclusions tab specify any senders or recipients for whom not to apply this disclaimer Click Add and specify the User or Email Address to exclude note All recipients must be included in the exclusion list to not add a disclaimer in the email 15 Click OK to save settings 10 1 2 Disabling and enabling disclaimers By default disclaimers are automatically enabled To disable or enable a disclaimer 1 Click Start gt All Programs gt GFI MailEssentials gt Email Management Tools to load Email Management Tools 2 Select Disclaimers node an
318. te to apply changes GFI MailEssentials 8 Content Filtering 158 Options Match whole words only Apply above conditions to attachments Attachment filtering Check all attachments having file extensions in this list gt Check all except attachments having file extensions in this list File extension entry eg txt E S n E File extensions Import Screenshot 84 Content Filtering Body Tab configuring other options 5 Optional From the Options area configure the following settings CA peseription Match whole words Block emails when the keywords specified match whole words only Apply above Select this option to apply this rule also to text in attachments In the Attachment filtering area conditions to specify the attachments file extension for example doc to apply or exclude from this rule attachments 6 Select the Subject tab to specify keywords to block in the email subject 7 From the Condition entry area key in keywords to block in the Edit condition box You can also use conditions AND OR AND NOT and OR NOT to use a combinations of keywords 8 To add the keyword or combination of keywords keyed in click Add Condition To modify an entry in the Conditions list select it and make the required changes in the Condition entry box To remove an entry from the Conditions list select it and click Remove Click Update to apply changes 9 From the Options area
319. ter users must authenticate themselves by including the password in the email subject field Password must be specified in the subject field as follows PASSWORD lt password gt lt Subject of the email gt Example PASSWORD letmepost Special Offer If password is correct list server removes the password details from subject and relays email to Newsletter Manually adding subscribers to the list Manually add users to newsletters discussions without any action on their behalf note It is highly recommended that users subscribe themselves to the list by sending an email to the subscribe newsletter discussion address Ensure that you have the users authorization before manually adding the users to the list 1 Right click the list to set permissions for and select Properties GFI MailEssentials 10 Email Management 213 Mylist Properties xi General Database Footer Permissions Subscribers RS List of subscribers The list below contains the complete list of subscribers for this list Use the buttons on the right to modify the subscriber list amp janerow tcdomainb com ae amp johndoe tedomainb Add Edit There are a total of 2 subscribers on this list Delete from database when user unsubscribes OK Apply Help Screenshot 120 Entering subscribers to the newsletter 2 From Subscribers tab click Add 3 Key in Email Address First na
320. tes when to check for updates NOTE It is recommended to enable this option for Anti Phishing to be more effective in detecting the latest phishing trends Enable email notifications Select unselect checkbox to be informed via email when new updates are downloaded upon successful updates Enable email notifications Select unselect to be informed when a download or installation fails upon failed updates Download updates now Click to immediately download Anti Phishing updates note You can download updates using a proxy server For more information refer to Proxy settings page 221 5 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 6 Click Apply 7 1 3 Directory Harvesting Directory harvesting attacks occur when spammers try to guess email addresses by attaching well known usernames to your domain The majority of the email addresses are non existent Spammers send emails to randomly generated email addresses and while some email addresses may match real users the majority of these messages are invalid and consequently floods the victim s email server GFI MailEssentials stops these attacks by blocking emails addressed to users not in the organizations Active Directory or email server Directory harvesting can either be configured to execute when the full email is received or at SMTP level t
321. that are processed by background scanning Background Virus Scan Messages Scanned in Total number of messages that are processed by background scanning Background GFI MailEssentials 12 Miscellaneous topics 259 13 Troubleshooting and support 13 1 Introduction This chapter explains how to resolve any issues encountered during installation of GFI MailEssentials The main sources of information available to solve these issues are This manual most issues can be solved through the information in this section GFI Knowledge Base articles Web forum gt Contacting GFI Technical Support 13 2 Common issues Dashboard shows no email is being processed or Only inbound or outbound emails are being processed After installing GFI MailEssentials some emails show a garbled message body when viewed in Microsoft Outlook GFI MailEssentials is configured to move mails blocked as SPAM toa subfolder of the users mailbox Clients connected to Microsoft Exchange via POP3 are not able to view mails blocked as SPAM Auto updates fail however manual download via the GFI MailEssentials configuration works fine Configuration data cannot be imported GFI MailEssentials 1 Ensure that GFI MailEssentials is not disabled from scanning emails For more information refer to Disabling email processing page 252 2 Check for multiple Microsoft IIS SMTP virtual servers and ensure that GFI MailEssentials is boun
322. the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log 9 Click Apply Check for amount of files in archives This filter allows you to quarantine or delete emails that contain an excessive amount of compressed files within an attached archive You can specify the number of files allowed in archive attachments from the configuration options included in this filter To configure this filter 1 Navigate to Content Filtering gt Decompression node 2 From the list of available filters click Check for amount of files in archives 3 To enable this filter select Check for amount of files in archives 4 Specify the maximum number of files in archives in the If the number of files within archive exceeds text box If the archive contains more files than the specified value the email is triggered as malicious 5 Specify what to do when an email contains an archive that triggers this filter Popo Description Quarantine Quarantines blocked emails Automatically Delete Deletes blocked emails GFI MailEssentials 8 Content Filtering 178 note When GFI MailEssentials is installed on same machine as Microsoft Exchange 2003 GFI MailEssentials may not be
323. the database GFI MailEssentials 15 Appendix 2 Lotus Domino 273 New Application Domino Srv Acme y Public Folder Cancel mail public nsf Blank EB Application Library 8 Discussion Notes amp Web 8 5 3 EB Doc Library Notes 4 Web 8 5 Lotus SmartSuite Library 8 5 Mail R8 5 7 Show advanced templates J Inherit future design changes Screenshot 157 Create a new database 2 Convert the database using the server console by typing load convert e h mail public nsf Command should display the following results version Utility shutdown Screenshot 158 Load convert result 3 On completion ensure that the database is accessible from IMAP service From the Lotus Notes Administrator go to Configuration and select the Files tab Highlight the database of the public folder click Edit select Copy as Link and click Application Link GFI MailEssentials 15 Appendix 2 Lotus Domino 274 Copy to the Clipboard a link to the current application Anchor Link Document Link View Link Application Link File Edit Administration Files Help T Undo Ghl z Copy Ctrl C Copy As Link Delete Del BD Select All Ctrl A El Deselect All fa Find Replace Ctrl F Find Next Gtr G External Links Unread Marks Admir David a Mail O Screenshot 159 Copy to the clipboard a link to the current application 4 From the configuration go to
324. ther to scan inbound and or outbound emails using this Virus Scanning Engine Scan inbound SMTP email Select this option to scan incoming emails Scan outbound SMTP email Select this option to scan outgoing emails GFI MailEssentials 6 Email Security 72 4 If you installed GFI MailEssentials on a Microsoft Exchange machine you will also have the option to scan internal emails and the Information Store Select Scan Internal and Information Store Items note To use the Information Store Virus Scanning feature you must enable the option from Information Store Protection node For more information refer to Information Store Protection page 88 note In this page you can also review the antivirus engine licensing and version information 5 BitDefender can also be used to block emails with attachments that contain macros Enable this feature from the Macro Checking area by selecting Block all documents containing macros note IF Macro Checking is disabled GFI MailEssentials still scans for and blocks Macro Viruses Ny Email Exploit Actions Actions Select the actions to perform when an exploit is detected 9 Quarantine email Delete email Notification options 9 Notify administrator FJ Notify local user Logging options Y Log occurrence to this file C Program Files x85 1GFMailEssentialslEmailSecuritylogsEmail Screenshot 33 Virus scanning engine actions 6 From Actions t
325. tings Database type o MS Access D SOL Server Microsoft Access reporting File C Program Files x86 GFMailEssentials data reports mdb Screenshot 22 Configuring a Microsoft Access database backend 1 Navigate to Reporting gt Settings 2 Select MS Access 3 Key in the complete path including filename and mdb extension of the database file If you only specify a filename the database file is created in the following default path lt GFI MailEssentials installation path gt GFI MailEssentials data 4 Click Apply Configuring a Microsoft SQL Server database backend 1 Create a new database in Microsoft SQL Server note It is recommended to create a dedicated user login in Microsoft SQL Server for GFI MailEssentials and assign it the database owner role GFI MailEssentials 4 Monitoring status 59 note For information how to create a new database in Microsoft SQL Server refer to http go gfi com pageid ME_newSQLdb 2 Navigate to Reporting gt Settings Reporting Auto Purge e Configure reporting database Use this node to enable and use GFI MailEssentials Reporting This enables you to use the data collected by GFI MailEssentials and generate various reports Enable Reporting Current Database Settings Current type Microsoft Access Current location C Program Files x86 GFl MailEssentials data reports mdb
326. tions message subject 6 In Edit Condition type Threat test and click Add Condition 7 From Actions tab enable Block email and perform this action and select Quarantine email 8 Click Apply to save the rule Step 2 Send an inbound test email 1 From an external email account create a new email and type Threat test as the subject 2 Send the email to one of your internal email accounts Step 3 Send an outbound test email 1 From an internal email account create a new email and type Threat test as the subject 2 Send the email to an external email account Step 4 Confirm that test emails are blocked Verify that both inbound and outbound test emails are blocked and quarantined To do this 1 From GFI MailEssentials go to GFI MailEssentials Configuration gt Quarantine gt Today 2 Ensure that both inbound and outbound test emails are listed in Malware and Content tab reason being Triggered rule Test rule Malware and Content 3 Spam 0 Use this page to approve or delete emails blocked due to malware content I Date Sender Recipients Subject Module Reason Source C ee administrator tcdomainb com jsmith tcdomainb com as 3 oe ee ee ope administrator tcdomainb com administrator tcdomainb com rae aio era me E popes administrator tcdomainb com administrator tcdomainb com a e a paias ae H 4 1 gt Mo Page size 10 v 3 items in 1 pages Screenshot 9 Test email blocked by Test rule not
327. to enable or disable 3 Click Enable Selected or Disable Selected accordingly 8 1 3 Removing content filtering rules LD WARNING Deleted rules are not recoverable If in doubt it is recommended to disable a rule 1 Goto Content Filtering gt Keyword Filtering 2 From the Content Filtering page select the checkbox of the rule s that you want to remove 3 Click Remove Selected 8 1 4 Modifying an existing rule 1 Goto Content Filtering gt Keyword Filtering 2 From the Content Filtering page click the name of the rule to modify 3 Perform the required changes in the rule properties and click Apply 8 1 5 Changing rule priority Content Filtering rules are applied in the same order from top to bottom as they are listed in the Content Filtering page that is rule with priority value 1 is checked first To change the sequence priority of rules GFI MailEssentials 8 Content Filtering 162 1 Go to Content Filtering gt Keyword Filtering 2 From the Content Filtering page click the up or down arrows to respectively increase or decrease the priority of the selected rule 3 Repeat step 2 until rules are placed in the desired sequence 8 2 Attachment Filtering Attachment Filtering allows you to set up rules to filter what types of email attachments to allow and block on the mail server A rule is composed of Attachment types to block Actions to take when a matching attachment is found gt
328. tory harvesting 18 20 23 42 102 107 220 249 251 Disclaimers 15 16 201 263 DMZ 22 28 34 151 198 DNS Server 31 36 113 123 144 270 Domain 14 19 34 107 113 116 117 123 130 150 198 202 206 209 217 223 225 241 243 260 269 270 E Edge Server 21 28 Email Blocklist 20 102 110 111 145 155 220 262 Email Direction 54 56 Email monitoring 15 18 19 215 263 F firewall 22 27 32 108 198 262 270 G gateway 21 25 26 28 33 69 72 76 80 85 115 183 189 232 260 263 270 Greylist 20 42 102 119 220 H Header checking 20 102 121 Hub Transport 16 21 28 88 GFI MailEssentials IIS 23 25 28 33 62 119 199 222 223 226 227 242 248 250 260 262 271 278 IMAP 150 260 274 Inbound mail filtering 18 Internal email 31 44 Internet 18 25 29 37 148 221 237 242 262 267 270 IP 30 36 60 98 112 115 117 119 123 133 198 220 221 235 262 265 270 IP DNS Blocklist 20 27 102 138 144 ISP 237 270 K Kaspersky 19 42 68 76 Keyword checking 20 102 124 145 L LDAP lookups 198 Legitimate email 20 42 102 128 130 Licensing 15 40 223 261 Lotus Domino 21 28 31 150 269 273 Lotus Notes 31 273 M MAPI 150 239 Microsoft Exchange 40 232 240 MSMQ 26 N New Senders 18 20 102 134 137 138 220 Newsletter 208 211 O Outbound mail filtering 18 P Performance 30 42 132 225 233 255 265 perimeter server 22
329. ubject Move to Saves email detected as spam to the path specified folder on Example C Spam disk File names of saved emails are in the following format Sender recipient subject number eml Example C Spam jim comp com_ bob comp com MailOffers 1 eml GFI MailEssentials 7 Anti Spam 137 Tag the email with specific text Append block reason to email subject Log rule occurrence to this file Select this option to add a tag to the email subject Key in the text to use for tagging and specify where to place the tag gt Prepend to subject insert the specified tag at the start i e as a prefix of the email subject text Example SPAM Free Web Mail gt Append to subject insert the specified tag at the end i e as a suffix of the email subject text Example Free Web Mail SPAM Add tag in an X header Add the specified tag as a new X header to the email In this case the X Header will have the following format e X GFIME SPAM TAG TEXT X GFIME SPAM REASON REASON Example X GFIME SPAM This is SPAM X GFIME SPAM REASON IP DNS Blocklist Check failed Sent from Blocklisted Domain O NOTE Rules manager can be used to move emails when this feature is used If this option is enabled the name of the filter which blocked the email and the reason for blocking are appended to the subject of the blocked email Log the spam email occurrence toa log file of your choice By defa
330. ult Successful Current Verson 2012 06 06 04 01 01 Click the button below to force the updater service to download the most recent updates Download updates now Screenshot 56 SpamRazer Updates tab 3 From the Updates tab perform any of the following actions Automatically check Configure GFI MailEssentials to automatically check for and download any SpamRazer updates for updates Specify the time interval in minutes when to check for spam detection rule and SpamRazer engine updates note It is recommended to enable this option for SpamRazer to be more effective in detecting the latest spam trends Enable email Select this option to be informed via email when new updates are downloaded notifications upon successful updates Enable email Select this option to be informed via email when a download or installation fails notifications upon failed updates Download updates Click to download updates now GFI MailEssentials 7 Anti Spam 104 note You can download updates using a proxy server For more information refer to Proxy settings page 221 4 Click Actions tab to select the actions to perform on messages identified as spam For more information refer to Spam Actions What to do with spam emails page 135 5 Click Apply 7 1 2 Anti Phishing Blocks emails that contain links in the message body pointing to known phishing sites or if they contain typical phishing keywords Phishing is
331. ult log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials AntiSpam Logs lt filtername gt log C NOTE Log files may become very large GFI MailEssentials enables log rotation where new log files are created periodically or when the log file reaches a specific size To enable log file rotation navigate to Anti Spam gt Anti Spam Settings Select Anti spam logging tab and check Enable log file rotation Specify the rotation condition by time or file size 7 3 Sorting anti spam filters by priority In GFI MailEssentials the order in which the anti spam checks are applied to inbound messages can be customized note The order of all available filters can be customized except for the New Senders filter which is always automatically set to the lowest priority This is due to its dependency on the results of the Whitelist checks and the other anti spam filters Default priority is recommended in most situations 1 Go to Anti Spam gt Filter Priority GFI MailEssentials 7 Anti Spam 138 Filter Priority SMTP Transmission Filtering P Configure the priority of spam filter execution Specify Filter Priority Name Priority Filter Level Greylist 1 SMTP Data t IP Whitelist 2 Full Emai t Sender Policy Framework 3 Full Email Whitelist 4 Full Emai t Directory Harvesting 5 Full Email t Anti Phishing 6 Full Emai SpamRazer 7 Full Email
332. uration of an Access Control List and the liS Authentication GFI MailEssentials 12 Miscellaneous topics 228 note Some services are temporarily stopped while performing this operation This may affect mail flow and or email scanning 3 Click Yes to restart the displayed services 4 Click OK 12 2 1 IIS Security Settings The Security button within the Ul mode tab enables you to configure an Access Control List and Authentication method Access Control List The Access control list specifies who can access GFI MailEssentials and what features are available for which users or groups By default Administrators are granted full access to GFI MailEssentials you can however specify specific users or groups with different access types To add a user 1 Load Switchboard by clicking Start gt Programs gt GFI MailEssentials gt Switchboard 2 Select Ul Mode tab Click IIS Mode and select Security GFI MailEssentials 12 Miscellaneous topics 229 aJ ACL Users Management and Authentication ACL Authentication 4 IIS Mode Access Control List a Configure who can access GFI MailEssentials and what features are available for which users Screenshot 133 IIS Security ACL tab 3 4 gt gt gt gt 5 Click Add and provide the name of the user or group to add to the list Select the type of access to grant Available options are Full Quarantine Reporting RSS Click OK to finali
333. urity Logs lt EngineName gt log Step 3 Specifying users to whom this rule applies 1 By default the rule is applied to all email users GFI MailEssentials however allows you to apply this rule to a custom list of email users specified in the Users Folders tab Q B Content Filtering Users Folders Please select users this rule will apply to Only this list O All except this list Screenshot 93 Content Filtering Users Folders Tab GFI MailEssentials 8 Content Filtering 172 2 Specify the users to apply this rule to Only this list Apply this rule to a custom list of email users groups or public folders All except this list Apply this rule to all email users except for the users groups or public folders specified in the list 3 To add email users user groups and or public folders to the list click Add User Lookups La Configure Users Check Names E Name Email Address Email Aliases o E A Bob Jones bjones tcdomainb com No other aliases Screenshot 94 Add users to a Content Filtering rule 4 In the User Lookups window specify the name of the email user user group or public folder that you wish to add to the list and click Check Names Matching users groups or public folders are listed underneath note You do not need to input the full name of the users groups or public folder It is enough to enter part of the name GFI MailEssentials will list
334. usage Go to People and Groups and select Mail In Database Create a new Mail in Database and in the whole directory path enter the full path for example Mail public nsf 8 Save and close the document 15 4 GFI MailEssentials Configuration 1 From the GFI MailEssentials web interface expand AntiSpam and select AntiSpam Settings 2 On the right hand pane select Public Folder Scanning tab and enable Public Folder Scanning 3 From the IMAP configuration section enter the IMAP server your Lotus Domino server Port and the credentials of the user to access the folder note The test button will not function 4 Click Apply to save modifications GFI MailEssentials 15 Appendix 2 Lotus Domino 276 Canes DNS Server Public Folder Scanning Remote Commands Anti spam logging Global Actions Perimeter SMTP Servers B Configure use of public folders for classification of emails Public Folder Scanning Settings M Enable Public Folder Scanning Ro hours Scanning interval Poll public folders via IMAP configuration Server 192 168 1 205 Port I Use SSL Username Password T NOTE IMAP cannot be used to access Exchange 2007 2010 Public Folders Screenshot 162 Enable Public Folder Scanning 5 From the registry change values to use this function From MACHINE SOFTWARE GFI ME12 ATTENDANT RPFOL String Value as follows Name V
335. vious installation on SMTP Server Microsoft Exchange Server 2003 GFI MailEssentials 3 Installation 40 Only previous version of GFI MailSecurity is installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Following the installation also complete the GFI MailEssentials Post Install Wizard For more information refer to Post Installation Wizard page 36 Only previous version of GFI MailEssentials is installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Both previous versions of GFI MailEssentials and GFI MailSecurity are installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Previous installation on Microsoft Exchange Server 2007 2010 Only previous version of GFI MailSecurity is installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Following the installation also complete the GFI MailEssentials Post Install Wizard For more information refer to Post Installation Wizard page 36 Only previous version of GFI MailEssentials is installed Install GFI MailEssentials as if installing for the first time For more information refer to Installation procedure page 32 Both previous versions of GFI MailEs
336. ways delivered to the recipient The New Senders filter identifies emails that have been received from senders to whom emails have never been sent before Yes only if GFI MailEssentials is installed in an Active Directory environment Yes Yes Yes No No No Yes No No Yes No An anti spam engine that determines if an email is spam by using email reputation message fingerprinting and content analysis SpamRazer is the primary anti spam engine and is enabled by default on installation Frequent updates are released for SpamRazer that will further increase the response time to new trends of spam SpamRazer also includes Sender Policy Framework filtering which detects forged senders It is recommended that senders publish their mail server in an SPF record For more information on SPF and how it works visit the Sender Policy Framework website at http www openspf org This filter also blocks NDR spam For more information on NDR spam refer to http g0 gfi com pageid ME_NDRSpam Configuring SpamRazer note Disabling SpamRazer is NOT recommended GFI MailEssentials 7 Anti Spam 102 note GFI MailEssentials downloads SpamRazer updates from mailshell net 1 Go to Anti Spam gt Anti Spam Filters gt SpamRazer General Actions E 4 SpamRazer Configuration SpamRazer is an anti spam engine that determines if an email is spam through the use of email fin
337. whenever this engine blocks an email For more information refer to administrator Administrator email address page 219 Notify local Notify the email local recipients about the blocked email user 7 To log the activity of this engine to a log file select Log occurrence to this file In the text box specify path and file name to a custom location on disk where to store the log file By default log files are stored in lt GFI MailEssentials installation path gt GFI MailEssentials EmailSecurity Logs lt EngineName gt log GFI MailEssentials 6 Email Security 92 General Actions Updates Q Configure the Automatic Updates For This Profile Automatic update options Configure the automatic update options Automatically check for updates Downloading option Check for updates and download Download time interval fi hour s Last update 06 04 2012 16 30 57 Update options E Enable email notifications upon successful updates NOTE Notifications for unsuccessful updates will always be sent Click the button below to force the updater service to download the most recent updates Download updates Update Status No updates currently in progress Screenshot 47 Virus scanning engine updates 8 From Updates tab select Automatically check for updates to enable automatic updating of the AV files for the selected engine 9 From Downloading opti
338. ystem Windows DEP Exception If you installed GFI MailEssentials on an operating system that includes DEP you will List need to add the GFI MailEssentials scanning engine GFiScanM exe and the Kaspersky Virus Scanning Engine kavss exe executables Y NOTE This is required only when installing on Microsoft Windows Server 2003 SP 1 or SP 2 For more information refer to Add engines to the Windows DEP Exception List page 42 Launch GFI MailEssentials Go to Start gt Programs gt GFI MailEssentials gt GFI MailEssentials Configuration Configuration Enable Directory Harvesting Directory harvesting attacks occur when spammers try to guess email addresses by attaching well known usernames to your domain The majority of the email addresses are non existent This filter is enabled by default if GFI MailEssentials is installed in an Active Directory Environment For more information refer to Directory Harvesting page 107 Enable Greylist The Greylist filter temporarily blocks incoming emails received from unknown senders Legitimate mail systems typically try to send the email after a few minutes spammers simply ignore such error messages This filter is not enabled by default For more information refer to Greylist page 119 For more information refer to Greylist page 119 Configure Whitelists The Whitelist contains lists of criteria that identify legitimate email Emails that match these criteria are not scanned by anti spam
339. ze setup To remove access to a user or group select the item to remove and click Remove IIS Authentication Mode The IIS Authentication Mode enables you to choose the authentication method to use when accessing GFI 1 2 MailEssentials Load Switchboard by clicking Start gt Programs gt GFI MailEssentials gt Switchboard Select UI Mode tab Click IIS Mode and select Security GFI MailEssentials 12 Miscellaneous topics 230 3 Select Authentication tab x ACL Users Management and Authentication Select the Authentication Mode which you would like to use to access GFI MailEssentials meee Wed C Windows Mode This option does not provide the ability to log off from GFI MailEssentials user interface and the user log on session does not time out Forms Mode Specify user log on session timeout 30 minutes timeout Screenshot 134 IIS Security Authentication tab 4 Select one of the available options Windows Windows authentication enables GFI MailEssentials to make use of the credentials of the currently logged on Mode user and does not provide log off and automatic timeout of the user interface session Forms Default Forms authentication provides the ability for users to log off It also enables you to configure an Mode automatic timeout from the user interface session This is recommended if end users are accessing their GFI MailEssentials user console especially if used fro

GFI Kaspersky Anti-Virus Updates f/MailSecurity, 10-24M, 1Y, ENG

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