Troubleshooting IBM® Lotus® Domino® 8 mail routing issues
Contents
1. command If the delivery failure occurs for an older user then their Person document might be corrupted in which case delete the same and copy from the backup Done e Any denial due to policy reasons check the Configuration document for any restriction specified Also check if there are any rules specified in the server s Configuration document Done 2 Check the Mail box for any messages that are dead or held and determine whether disabling the antivirus software resolves the issue Done 3 Gather the Delivery Failure Report and any relevant errors seen in the console log or log nsf If the delivery failure indicates else go to Step 4 a No router found to server check the Connection document of the server Done b Mailbox corruption shut down the server and recreate the Mail box of the destination server Done c Server is not a known TCPIP host check the DNS server Ping with server name to check if the server name is being resolved Done 4 Issue the command tell router show on server console If you get a server not responding error check the connectivity to server If connectivity is fine verify that the server is up If server is up check if you are able to Telnet to server on port 1352 If unable to Telnet to server on port 1352 the port might be blocked in the firewall If the output shows a Busy state check whether you are able to transfer data to the destination serv2. C Domino862 Lotus Domino data I BM_TECHNICAL_SUPPORT Here s an example of the Tell Router Show Queue command output Msgs State Via Destination 57 Busy 18 NRPC LocalDelivery 24 Retry 4 NRPC CN MesungUS O Sun Push Last error Server not responding Next retry 1 04 2009 09 53 09 AM Transfer Threads Max 18 Total 14 Inactive 0 Max Concurrent 9 Delivery Threads Max 18 Total 18 Inactive 0 For more information refer to the Lotus Software Knowledge Base document 1093506 Figure 11 shows example output for the Show Tasks command Figure 11 Show Tasks output Description Database Server Perform console commands Server Listen for connect requests on TCPIP Server Load Monitor is idle Server Database Directory Manager Cache Refresher Database Server Organization Name Cache Refresher is idle Database Server Log Purge Task is idle Database Server Idle task Database Server Idle task Database Server Idle task Database Server Perform Database Cache maintenance Database Server Idle k Server Idle Server Idle Server Idle Server Idle Server Idle Server Idle Database Server Idle Database Server Idle task Database Server Shutdown Monitor Database Server Process Monitor SMTP Server Listen for connect requests on TCP Port 25 SMTP Server Utility task IMAP Server Listen for connect requests on TCP Port 143 Server Utility task Server Listen for connect requests
3. Directory DebugRouterLookup 3 Valid User 02 07 2005 11 52 13 AM DebugRLookup Lookup beginning for user test name test 02 07 2005 11 52 14 AM DebugRLookup Lookup beginning for user test name test 02 07 2005 11 52 14 AM DebugRLookup Lookup result has 2 matches user test name test 02 07 2005 11 52 14 AM DebugRLookup Lookup multiple match 2 Fullname 1 CN Test User O Lotus 02 07 2005 11 52 14 AM DebugRLookup Lookup multiple match 1 Fullname 1 CN Test User O IBM C IN 02 07 2005 11 52 14 AM DebugRLookup Lookup multiple match 1 Fullname 2 Test User 02 07 2005 11 52 14 AM DebugRLookup Lookup Error Non unique matches for user Test name Test 8 Notes ini variables for debug Below is a list of Notes ini variables that can be set to debug SMTP routing issues on a Domino server excerpted from the Lotus Support Techdoc 7003007 Domino Router notes ini debug parameters for SMTP Important Note The SMTPClientDebug parameter does not require the use of the Notes ini parameter debug_outfile All information will be written to the Miscellaneous section of Log nsf However SMTPDebug and SMTPDebugIO do not write their outtfile to the LOG NSF and need to use the following parameter debug_ outfile path filename txt SMTPClientDebug Captures the outgoing SMTP protocol conversations This is for all messages transferred by the router to other servers Domino or otherwise via the SMTP protocol Note that this does not in
4. If Port 110 is disabled enable it for the first time see Step 2 b If Port 110 was already enabled call Lotus Support DONE Confirm the POP3 Client is configured to use 110 as the POPS port Also try using the IP address same as used for Telnet in the POP3 Server Name field If DNS cannot resolve the host name of the POPS server connectivity will fail DONE 8 Use Telnet to test POP3 authentication From a command prompt connect to the Domino server over port 110 After receiving the OK Domino banner type User username lt enter gt Pass password lt enter gt a If you get OK username has X messages authentication is successful Apply the same credentials to the POPS client DONE b If you get ERR Error authentication is failing with these credentials Reset the Internet password in the Person document and repeat testing authentication over telnet until log in is successful DONE If the IMAP Client a cannot connect to Lotus Domino go to Step 10 b can connect but fails to authenticate go to Step 11 c can authenticate but cannot fetch mail go to Step 12 Issue a show tasks command on the Domino console and look for IMAP Server listening for request on 143 If you a See the IMAP Server task listening on 143 go to Step 13 b Do not see the IMAP Server task listening go to Step 14 Verify the user has an Internet password specified in the Person document This is the IMAP password
5. SMTP listener and the message deposited in MAIL BOX is already in MIME format then the router sends it using SMTP Messages in Notes rich text format are sent over Notes routing e SMTP allowed for all messages If the destination is a Domino server running the SMTP listener then the router always uses SMTP when transferring a message to another Domino SMTP host regardless of the message s current format If a message deposited in MAIL BOX is in Notes format the router converts the messages to MIME before sending When the router picks up a message in MAIL BOX it reads the address to determine whether the recipient is in the local domain If the recipient is local the router looks in the Users view of the Domino Directory for a Person document containing that address If SMTP is allowed within the domain and the message format matches the format specified in this setting then the router 1 uses TCP IP to connect to the destination server 2 establishes an SMTP connection and 3 transfers the message By default enabling SMTP within the local Domino domain allows the router to use SMTP to transfer mail to any other Domino SMTP host in the same Domino domain Note that you can restrict the use of SMTP within the local domain so that SMTP is allowed only for message transfers that take place between servers in the same NNN To do this on the Router SMTP Basics tab of the Configuration Settings document set the field Ser
6. it cannot be routed forward or backward The intended recipient of the original message your domain is unreachable The Delivery Failure Report back to the sender also fails This is typically seen with spoofed sender addresses SPAM DONE 5 Message is in a HOLD state There are only three reasons why a message can be held e Lotus Domino is configured to Hold Undeliverable Mail enabled in the Configuration Settings document under the Router SMTP Advanced Controls tab in the section Restrict name lookups to primary directory only DONE 10 e There is a Server Mail Rule configured to Hold messages enabled in Configuration settings document under the Router SMTP Restrictions and Controls Rules tab DONE e Third party products particularly Anti Virus software are the most common reason for held mail DONE Message is PENDING Issue a tell router show command at the server console If it indicates that your message destination is e Inastate of WAIT go to Step 8 e Inastate of BUSY go to Step 9 e Inastate of RETRY go to Step 10 If you do not see your message destination go to Step 9 Check the Console log or Mail Routing Events view in the Log nsf to see whether your message was transferred to the next hop e If the next hop is Domino go back to Step 3 e If the next hop is non Domino then Lotus Domino did its job and the issue is non Domino DONE e f you do not see the message in the
7. log call Lotus Support DONE A message can be in a WAIT state for two reasons e It is tagged low priority and is waiting for the low priority routing time range DONE e Connection document setting shows Route at once if X messages pending and the threshold of X has not yet been reached DONE Issue a show tasks command at the server console If you see One router thread that says IDLE call Lotus Support DONE All router threads in a state of Connecting to or Transferring to this could mean the server is simply under high load and mail is backing up waiting for transfer threads to free up from other transfers DONE e One router thread that says DISPATCHING go to Step 11 Check the Column title Reason of last error If it says Server not responding go to Step 12 Remote system not a known TCPIP host go to Step 13 No error call Lotus Support DONE 400 SMTP Protocol Returned a Transient Error it s typically network or destination server related DONE If none of the above call Lotus Support DONE 11 13 If you see one router thread that says DISPATCHING the issue is likely DNS related Make sure that all NameServer keys in the Microsoft Windows Registry are populated correctly a Launch the Registry Start gt Run and type REGEDIT b Look for the Registry key identified as HKEY_LOCAL_MACHINE SYSTEM CURRENTCONTROLSET SERVICES TC PIP PARAMATERS I
8. used for authentication The User Name will depend on the following Server document setting found in the Security tab Internet authentication More name variations with lower security This field is set to More name variations with lower security if the User Name that should be used for authentication can match the shortname lastname common name or Internet address in the user s Person document This field is set to Fewer name variations with higher security if the User Name that should be used for authentication can match the Internet address or common name in the user s Person document see Step 16 Collect any error messages seen on the IMAP Client or Domino server console logs If you cannot find the error s on the Lotus Support Web site call Lotus Support DONE Use Telnet to test connectivity to Domino over port 143 from the same workstation on which the IMAP Client is installed If it s a Windows platform open a command prompt and type telnet lt MX_hostname_or_IPaddress gt 143 Figure 8 shows successful connectivity to the Domino server Figure 8 Successful connectivity OK Domino MAP4 Server Release 3 0 1 ready Tue 31 Mar 2009 12 53 18 0530 a a If Telnet connectivity is successful you get an OK Domino banner go to Step 15 b If Telnet connectivity fails repeat the same Telnet test from inside the firewall if it s successful the problem is likely related to the firewall blocking conne
9. 3 leaving the local internet MIME NOTES Message Desclaimers NI Settings Domino Web Access IMAP SNMP Advanced Advanced Message Tracking 6 Key troubleshooting commands Server commands that can help gather data for troubleshooting mail routing issues are Show Server Show Task Show Task Time Show Stat Mail Route Trace NOOR OD Tell Router Show Queue Activity Logging Diagnostics An example of the output for the show server command is shown in figure 10 Figure 10 Show server command output Domino802 Domino802 Lotus Domino Server gt sh server ojx Lotus Domino Cr Server Release 8 0 2 for Windows 32 gt 65 19 2669 65 69 28 PM name Domain name Server directory Partition Elapsed time Transaction Peak of sessions Transactions 442 ThreadPool Threads Availability Index Mail Tracking Mail Journalling Shared mail of Mailboxes 5 Waiting Tasks Transactional Logging Fault Recovery Activity Logging Server Controller Diagnostic Director minute Domino862 Domino862 Domino8 2 Domino862 C Domino862 Lotus Domino data C Domino86 2 Lotus Domino data 66 35 57 Last minute 2 Last hour 2 at 65 19 2609 64 41 54 PM Max concurrent 40 46 lt ICPIP Port 166 lt state AVAILABLE gt Not Enabled Enabled Local Destination Not Enabled 1 13 Peak 211 Dead mail 5 Not Enabled Not Enabled Not Enabled Not Enabled
10. 5 1 Internal mail routing not working sc ceased decs ese cecos tia dacd ana eecas edocs toaasevesteaseesoaedeesess 9 5 2 Mail is not routing to the Internet but internal mail works fine 0 000 10 5 3 Problems with inbound SMTP MAI sissciccssicnsiidadisievaseaanuieienmmanaudans 12 5 4 Internet users get a DFR when replying to your mail 00500000000000000000 14 5 5 Problems receiving mail via POP3 or IMAP s ssssssssesesesssesssesesesessesesesesesese 15 5 6 Duplicate messages are received by a Notes mail fil cece 18 5 7 Mail being delivered to the wrong LECIPION ccccceccceeseseeeeeseeseeetseeteesees 20 6 Key troubleshooting COMMAMAS cesesessesseceescececeesceceseeeeseeseeseeesecseeneeeaeeasers 21 7 Debugs for collecting further troubleshooting data eeeeseeceeeeteeseeeeneeeeees 24 8 Notes ini variables for debug ssccehs sins Se testecree aeorseteacca esac deuce avnscsupeee il ekeencidts 27 9 COMCIUISION siia a aaie oa aatasi 29 TO RESOUCE Sinin a a T a a a a a ae 29 WL Abou tthe AUUMIONS eenen crenn odane a A EE s 29 1 Introduction IBM Lotus Domino is a widely used messaging system and one of the most commonly reported problems is around mail routing Often times issues are simple and can resolve on their own for example network links DNS unavailability however there are certain scenarios in which it s difficult to identify the root cause of the issue During the troubleshootin
11. NTERFACES c Confirm that the NameServer string contains the correct IP address for DNS purposes if it does not contain the IP address enter it in that field and then restart the Domino router DONE d Try using DNSServer lt 1 2 3 4 gt where 1 2 3 4 represents your DNS server s IP address in the Notes ini file so that Lotus Domino bypasses the OS and queries DNS directly DONE Use Telnet to test connectivity to Remote server on port 25 if SMTP and 1352 if NRPC e f unable to connect it s likely a network or firewall problem DONE e If able to connect it could be that Lotus Domino was given a wrong value by DNS in resolving the destination server go back to Step 11 The Remote system not a known TCPIP host error means that DNS is unable to resolve the hostname to an IP address go back to Step 11 5 3 Problems with inbound SMTP mail If you are Unable to receive SMTP mail from all Internet domains go to Step 1 Able to receive SMTP mail from some Internet domains or addresses but not others go to Step 2 Issue a show tasks command at the Domino console if you a See SMTP Server Listening for requests on port 25 go to Step 3 b Do not see SMTP Server go to Step 4 c See SMTP Server listening for requests on a different port than 25 go to Step 5 Gather the DFR and any relevant errors seen in the console log or Log nsf Call Lotus Support DONE Verify an MX record e
12. P to route mail Lotus Domino uses Notes routing to transfer outbound Internet messages to a Domino SMTP server which then transfers the messages to the Internet either directly or through a relay host To configure servers that use Notes routing to transfer Internet mail to a Domino SMTP server you must use a Foreign SMTP Domain document and an SMTP Connection document 5 Common issues and troubleshooting tips Now that you have an idea of how NRPC and SMTP mail routing works in Lotus Domino we can move forward to understand on how to troubleshoot some common issues 5 1 Internal mail routing not working If mail is not being e Delivered from Mail box to the mail file go to Step 1 e Transferred to another server s Mail box go to Step 2 1 Gather the Delivery Failure Report DFR and any relevant errors seen in the console log or Log nsf If the delivery failure indicates else go to Step 3 a The quota is full get the mail file below quota or increase the quota of mail file Done b There is Mailbox corruption shut down the server and recreate the mail box Done c File does not exist check the mail file Done d User not found in name and address book there might be a newly registered user whose Person document may not yet have replicated or if the document is replicated then the index might not have updated In this case update the index of User view by loading the updall names nsf t User
13. This setting is useful to trap messages that we fail to accept from other SMTP servers sending mail to this server It is important to note that only message that result in import errors will be written to a temp file when using this value 2 Save all messages that are received at the server 3 Save all inbound messages during import delete all messages that have been successfully received and written into MAIL BOX Only messages that fail to be imported into MAIL BOX will be saved to a temp file For more information refer to the Knowledge Base document 1095102 How to trap inbound SMTP messages on a Domino server To inspect network related issues in SMTP mail routing we can use these debug parameters debug_tcp_resolver 1 Provides samples of good and bad responses from TCP Resolver during troubleshooting of DNS problems debug_tcp_session 1 Displays debug information about sessions opened and closed on TCP IP For more information refer to the Knowledge Base document 1087806 How should the DEBUG OUTFILE Parameter Be Implemented 9 Conclusion Customers should now have a good feel for solving mail routing issues on your own which will help you be self sufficient and in turn reduce the turn around times for problem resolution If you re a Support Engineer hopefully this paper has also helped you resolve mail routing issues and enhanced your understanding of the debug outputs 10 Resources developerWo
14. Troubleshooting IBM Lotus Domino 8 mail routing issues Seema Janjirkar Software Engineer IBM Software Group Pune India Ranjit Rai Software Engineer IBM Software Group Pune India May 2009 Copyright International Business Machines Corporation 2009 All rights reserved Abstract This white paper demonstrates how to identify and resolve IBM Lotus Domino 8 mail routing problems By explaining how and which debug to use and how to analyze the debug output it is intended to help customers debug mail routing issues on their own Support Engineers can also benefit from this paper by enhancing their understanding of the debug outputs and by using it as a cheat sheet in identifying and resolving common mail routing issues Contents l Introd ction visini ene EEE se EE T EE whe Ra Ein aaa 2 2 Overview of IBM Lotus Notes mail routing cc ccescssesscseeeecsseeecseeseeeeseeees 2 SOW ial ro ting WOUK Stare scacuus aes ea oleae hel e chilies tot cect to 3 3 1 HOW Notes routing MOVES a message cccccccescessesesssesscsseesesseeecesenssesessesseenees 3 4 Overview of SMTP mail routing ccc cseecsteescsessceessseecsesecseeeseseeeseeseeseeseeseeees 4 4 1 Enabling SMTP on a DOMINO SOPVEP cccccceescesesseseeseeseeecaceaeeecaceseeeeeeseeseeees 5 4 2 How the router determines when to use SMTP 6 5 Common issues and troubleshooting tips cece cceseessesecseesecseesscseeeecsseeseeeeseeees 9
15. age and go to Document Properties Click on the Fields tab second tab and highlight the PostedDate field Make note of the time stamp value as follows 04 04 2006 07 58 01 AM EDT Repeat these steps on the duplicate message and compare the values if the a PostedDate values match go to Step 3 b PostedDate values do not match go to Step 4 2 With a Notes Client locate the duplicate message in the mail file and select View gt Show gt Page Source The first set of fields is the RFC822 Received fields Each Received field represents an SMTP server hop on route from source to destination through which the message traversed Each server hop is stamped with the time the message was received Compare the list of Received fields with that of the duplicate message a If one set of Received fields does not display identical time stamps go to Step 10 b If the list of Received fields is identical go back to Step 3 In the Document Properties Fields tab locate the MessagelD field Compare the entire value to the MessagelD of the duplicate message a If the MessagelD values match go to Step 5 b If the MessagelD values do not match go to Step 6 If the PostedDate field values do not match the message was composed by the sender s mail client twice This is not a true duplicate message Possible reasons for this scenario could be a malfunctioning agent in the sender s mail file or simply the sender s intention
16. ame server If after checking the recipient s Person document the router determines that the recipient s mail server is the same as the sender s server it delivers the message to the recipient s mail file Moving a message to a recipient on another server within a NNN If the sender and recipient don t share a mail server the router checks the Domino Directory to determine whether the servers are in the same Domino domain If the Server document for the destination server is found within the Domino Directory the router checks that document to determine the network information for the server On the Ports Notes Network Ports tab of the Server document the server is assigned to one or more NNNs A NNN is a group of servers in a given Domino domain that share a common protocol and are connected by a LAN or modem connections NOTE Servers within the same domain may or may not be in the same NNN while servers that share a NNN are always in the same Domino domain If the two servers share a NNN the router immediately routes the message from the MAIL BOX file on the sender s server to the MAIL BOX file on the recipient s server The router on the recipient s server then delivers the message to the recipient s mail file Because mail routes automatically within a NNN you don t need to create any additional connections or documents Moving a message to a recipient in a different NNN within the same Domino domain If the sender s and recipie
17. clude the message content just the higher level protocol commands and responses 1 Enable capture of outbound SMTP message transfer protocol SMTPDebug Captures inbound SMTP protocol conversations This is for all messages received by the SMTP listener from all clients and servers via the SMTP protocol 1 Enable minimal logging of the SMTP listener 2 Enable information logging of data sent and received along with some additional debugging information This setting indicates commands and responses being received sent along with the number of bytes being transmitted but it does not include the text that is transmitted 3 Enable verbose logging of data sent and received Along with the information recorded at setting 2 this level shows the actual text received sent via SMTP Note that this does not include the text body of messages 4 This is the most verbose you will get for logging note that this is an undocumented value the documentation only lists up to 3 SMTPDebugIO Enables the logging of all data received by the SMTP listener task 0 No logging 1 Number of bytes sent and received during the SMTP conversation 3 Logs all data received by the SMTP task 4 RFC822 data message data Syntax SMTPDebuglO value Caution Use SMTPDebugIO only when necessary and disable it again as soon as possible It can cause the log file to grow very large and logs the contents of received messages Applies to SMTP serv
18. ctivity to port 143 for external users DONE 14 Verify that IMAP port 143 is enabled in the Server document Ports tab Internet Ports Mail tab his port should be enabled by default Once confirmed issue a load imap command at the console a If Port 143 is disabled enable it for the first time see Step 10 b If Port 143 was already enabled call Lotus Support DONE 15 Confirm the IMAP Client is configured to use 143 as the IMAP port Also try using the IP address same as used for Telnet in the IMAP Server Name field If DNS cannot resolve the host name of the IMAP server connectivity will fail DONE 16 Use Telnet to test IMAP authentication From a command prompt connect to the Domino server over port 143 After receiving the OK Domino banner type tag login username password a If you get OK login completed authentication is successful Apply the same credentials to the IMAP client DONE b If you get NO LOGIN invalid user name or password authentication is failing with these credentials Reset the Internet password in the Person document and repeat testing authentication over Telnet until log in is successful DONE 5 6 Duplicate messages are received by a Notes mail file If the sender of the duplicate messages is an internal Notes user go to Step 1 e resides on the Internet go to Step 2 1 Open the Inbox and locate the duplicate messages with a Notes Client Right click on the first mess
19. cument see figure 2 You can configure Lotus Domino to use SMTP when sending mail to destinations either outside or within the local Internet domain Figure 2 Configuring the Domino server to use SMTP E Configuration Settings NMIP STP _ Basics Smart Upgrade Router SMTP MIME NOTES INI Settings Domino Web Access IMAP SNMP Activity Loc Basics Restrictions and Controls Message Disclaimers Message Tracking Advanced Number of mailboxes SMTP used when sending Enabled messages outside of the local internet domain SMTP allowed within the local Disabled internet domain 4 2 How the router determines when to use SMTP On servers that support both SMTP and Notes routing each time the Router detects a new message in MAIL BOX it chooses the protocol by which to transfer the message The routing decision is based on the message s address and format and whether the server is configured to send SMTP within the local Domino domain or outside the local Internet domain or both Using SMTP to send mail to local Domain addresses Enabling SMTP within the local Domino domain allows the Router to consider SMTP as an alternative routing protocol when transferring mail to another Domino server in the same Domino domain When configuring servers to send SMTP within the local Domino domain you have the following options e SMTP allowed for MIME messages only If the destination is a Domino server running the
20. e values and logs for Log_MailRouting Table 2 Values for Log MailRouting Minimal All mandatory status messages and fatal error s a messages for example startup and shutdown mail Log_MailRouting 10 database compaction etc Successful deliveries and transfers are not recorded Normal All messages in Minimal logging level Log_MailRouting 20 Also logs all warning messages indicating conditions 7 that do not cause processing to stop Informational All messages at Minimal and Normal levels Log_MailRouting 30 Also logs all informational messages involving Intermediate storage MAIL BOX access Message handling including thread information Message conversion Transport status Logging Level Information Logged Verbose Includes Minimal Normal and Informational messages Log_MailRouting 40 Additional messages that may help you troubleshoot a system problems including Successful transfers and deliveries Message queues and full document information for Mail Box The full hierarchical names of senders and recipients The UNID of each message and creation usage idling and shutdown of routing threads Enable the Verbose setting only during troubleshooting Verbose logging taxes server resources and causes the log file to increase dramatically in size The output of Log_MailRouting 40 is the cumulative output of 10 20 and 30 Log_MailRouting 40 01 04 2009 05 40 21 PM Router Searchin
21. er by other means copying small file or ftp ing small file Also check whether disabling the antivirus resolves the issue of mail routing aog 5 2 Mail is not routing to the Internet but internal mail works fine If you are receiving e A dialog pop up error when clicking Send on your client go to Step 1 e A Delivery Failure Report go to Step 2 e No failures but the Internet recipient never gets the message go to Step 3 1 Begin the Notes Client troubleshooting script a Check whether client is able to ping to the server if not check the network setting on the operating system Go to b b Check whether you can trace to the server from Notes client if not check that the server is up and running Also confirm that port 1352 is open for the server Go to c c Check whether you able to open the mail file if not search for the error message on the Lotus Support Web site If not found or still unresolved call Technical Support DONE 2 Search the Lotus Support Web site for DFR dynamically if not found or still unresolved call Technical Support DONE 3 Open the Mail box file on the Domino server If you e See your message with a red circle icon beside it go to Step 4 e See your message with a red beside it go to Step 5 e See your message sitting there with no icons go to Step 6 e Do not see my message go to Step 7 4 Message is in a DEAD state A message will be in a DEAD state if
22. ers Default 0 UI equivalent None Figure 13 shows an example of SMTPDebuglO 4 output Figure 13 Example output for smtpdebugio 4 Hi Jerry 5 24 2606 bi 32 00 00 PM 2F4 6668 GACG1 SMTP CITask StateMachine gt ITASK_STATE RECU_TEXT Received bytes from 33 9 11 5 24 2606 61 32 60 06 PM 2F4 6668 G6ACH SMTP CITask StateMachine gt ITASK_STATE RECU_TEXT Received 75 bytes from 33 9 11 H 62F4 6668 GACBH I was just wondering what you were doing on Memorial Day weekend George 5 24 2086 61 32 66 66 PM 62F4 6668 GACH SMTP CITask StateMachine gt ITASK_STATE ECU_TERT Received 75 bytes from 33 9 11 62F4 6668 G6ACBH and I are heading over to Elaine s for a BBQ You are more than welcome to 5 24 2606 61 32 0606 61 PM 2F4 6668 GACH SMTP CITask StateMachine gt ITASK_STATE RECU_TEXT Received 8 bytes from 33 9 11 02F4 0008 ACA I join us 5 24 2606 61 32 66 61 PM 2F4 6668 GACH SMTP CITask StateMachine gt ITASK_STATE ECU_TERT Received bytes from 33 9 11 SMTPSavelmportErrors Enables the SMTP listener to save the message context exactly as it is received The message is written to a file in the system Temp directory with aname STXXXXXX TMP When a message is saved in the temp file a line indicating the name of the file will be written to the log The value of the parameter controls the saving of messages as follows 1 Save all messages that fail to import parse save in MAIL BOX
23. for Marketing Acme Connecting to Marketing Acme over TCPIP Using address x xx xxx xxx for Marketing Acme on TCPIP Connected to server Marketing Acme 7 Debugs for collecting further troubleshooting data For issues with internal mail delivery and transfer and sending mail to the Internet over SMTP use the following debugs e DebugRouter Log_MailRouting DebugRouterLookup Table 1 shows the values and logs for DebugRouter Table 1 Values for DebugRouter mail routing filters which show whether messages are ready to be routed Pi addition and deletion of recipient names from routing queues routing tables least cost path calculation verbose information which is the combination of levels The output of DebugRouter 3 is the cumulative output of both 1 and 2 DebugRouter 3 Domain added Server CN MARKETING O ACME added to server table tasks 0001 Server CN SALES O ACME added to server table tasks 0001 Connection from CN MARKETING O ACME to CN SALES O ACME has a Cost 1 Connection from CN SALES O ACME to CN MARKETING O ACME has a Cost 1 Sorted Domains follow Wildcard SMTP Domain NextDomain THEINTERNET Rule table is 1 segments 0 bytes Sorted Rules follow Sorted Connections follow Source gt Destination CN MARKETING O ACME LOTUS gt CN SALES O ACME LOTUS CN SALES O ACME LOTUS gt CN MARKETING O ACME LOTUS Table 2 shows th
24. g for messages since 01 04 2009 05 39 55 PM 01 04 2009 05 40 21 PM Router Message lt PoolNum Block gt 1 1388 has 1 recipients priority 1 01 04 2009 05 40 21 PM Router Note NT00000D02 in mailbox 1 from CN Admin User O ACME 01 04 2009 05 40 21 PM Router Recipient 0 CN Admin User O ACME Lotus 01 04 2009 05 40 21 PM Router Recipient 0 Username CN AdminUser O ACME Domain Lotus 01 04 2009 05 40 21 PM Router Message lt PoolNum Block gt 1 1388 adding recipient Admin User Lotus Lotus mail auser nsf to the Local Delivery queue 01 04 2009 05 40 21 PM Router Message 007C88FD delivered to Admin User Lotus from Admin User Lotus OFB519EB71 FC2D0599 ON85256FA1 007C88FD Size 1K Time 00 00 01 Hop Count 1 01 04 2009 05 40 26 PM Router Deleting delivery queue LocalDelivery 01 04 2009 05 40 26 PM Router Deleting delivery recipient descriptor for CN Admin User O ACME Table 3 shows the values and logs for DebugRouterLookup Table 3 Values for DebugRouterLooku Logging Level Information Logged a i Enable logging Display how the Router task resolves a name lookup DebugRouterLookup 3 Bogus User 01 04 2009 05 07 50 PM DebugRLookup Lookup beginning for user bogus user name bogus user sun com 01 04 2009 05 07 50 PM DebugRLookup Lookup beginning for user bogus user name bogus user 01 04 2009 05 07 50 PM DebugRLookup Lookup error UserName bogus user Error User a not listed in Domino
25. g of such issues a technical support engineer frequently asks a customer to enable certain debugs So you may wonder What information is captured using debug parameters And how does IBM interpret the debug to identify the issue In this paper we explain the algorithmic approach to troubleshooting mail routing related issues by demonstrating how to troubleshoot the following Internal mail routing not working Mail is not routing to the Internet while internal mail works fine Problems in inbound SMTP mail Problems receiving mail via POP3 or IMAP Syntax of your Internet address is incorrect when Internet users try to reply to your mail they get a Delivery Failure Report DFR e Duplicate messages are received by a Notes mail file e Mail is getting delivered to the wrong person By learning these techniques customers should be better able to troubleshoot the above issues on their own 2 Overview of IBM Lotus Notes mail routing Let s begin by reviewing the basic steps of how mail routes in a Lotus Domino mail system 1 Using a mail client you create and address a mail message to a recipient 2 You send the message and your mail client uses either e Lotus Notes NRPC protocols to deposit the message into the MAIL BOX database on your Domino mail server e SMTP to send the message to your Domino mail server which must be running the SMTP listener task The SMTP listener task deposits the message into MAIL BOX Lotus N
26. ges will occur Currently the only known Domino server bug that could result in duplicate messages is documented in SPR PAZR6LM4UT Note that conditions of heavy routing load combined with a router restart are necessary for this issue to arise DONE Locate the mismatched Received field The SMTP server listed in the previous Received field is responsible for the duplicate message If the very first Received field is mismatched then the message was sent twice by the sender If the culprit server is a non Lotus Domino contact vendor technical support DONE b Lotus Domino go back to Step 9 5 7 Mail being delivered to the wrong recipient If mail is being delivered to the wrong person check the fein gt Person document of the recipient see Step 3 Configuration document Router SMTP tab Basics tab see Step 4 Mail file name for the recipient if it s wrong correct the same DONE Address lookup field if it s set to Fullname then local part change it to Fullname only see figure 9 Also make sure this setting is done on the first server that receives the mail Incoming SMTP server Figure 9 Address lookup field Configuration Settings NMTP STP Jasics SMTP Smart Upgrade Router Jasics Restrictions and Controls Number of mailboxes SMTP used when se messages outs Enabled ding de of the loca internet domain Disabled Always Relay host for messages 172 17 0
27. il command Figure 12 Show Stat Mail output gt sh stat mail Mail CurrentByteDeliveryRate Mail CurrentByteTransferRate Mail CurrentMessageDe liveryRate Mail CurrentMessageTransferRate Mail DBCachefiged Mail DBCacheEntries Mail DBCacheForcedOut Mail DBCacheHighWaterMark Mail DBCacheHits Mail DBCacheMaxEntries 1536 Mail DBCacheReads MAIL Dead 1 Mail DeliveryThreads Max 19 Mail DeliveryThreads Total Mail Domain SUN MAIL Hold 17 MAIL JournalPending 5 MAIL MessageUpdates 5 Mail TotalPending 18 Mail TransferThreads Concurrent Highest Mail TransferThreads Concurrent Max 9 Mail TransferThreads Max 1 Mail TransferThreads Total MAIL Waiting O MAIL WaitingForDIR MAIL WaitingForDNS MAIL WaitingRecipients 27 statistics found 6 Example Route commands gt Route Marketing Acme Sends mail to the Marketing server in the Acme domain The server console displays messages indicating when routing begins gt Route Sends mail to all pending destinations gt Route LocalDelivery Overrides the next scheduled retry time and attempts local delivery immediately Example Trace command Trace Ryan Lotus Determining path to server Marketing Acme Available Ports TCPIP Checking normal priority connection documents only Allowing wild card connection documents Enabling name service requests and probes Address found in local TCPIP names table
28. llowing Server document setting on the Security tab Internet authentication More name variations with lower security a If this field is set to More name variations with lower security the User Name that should be used for authentication can match the shortname lastname common name or Internet address in the user s Person document b If this field is set to Fewer name variations with higher security the User Name that should be used for authentication can match the Internet address or common name in the user s Person document see Step 8 Collect any error messages seen on the POP3 Client or Domino server console logs If you cannot fine the error s on the Lotus Support Web site call Lotus Support DONE Use Telnet to test connectivity to Domino over port 110 from the same workstation on which the POPS Client is installed If it is a Windows platform open a command prompt and type telnet lt MX_hostname_or_IPaddress gt 110 a If Telnet connectivity is successful you get a OK Domino banner go to Step 7 b If Telnet connectivity fails repeat the same Telnet test from inside the firewall If it s successful the problem is likely related to the firewall blocking connectivity to port 110 for external users DONE Verify that POP3 port 110 is enabled in the Server document Ports tab Internet Ports Mail tab This port should be enabled by default Once confirmed issue a load pop3 command at the console a
29. n part contains a period and is in the form localpart org domain or an address in another Domino domain including Foreign domains such as a pager or fax gateway To determine whether an Internet address is local the router checks whether the domain part of the address matches any of the local Internet domains defined in the Global Domain document in the Domino Directory Local Internet domains include any domains listed in the Local primary Internet domain and Alternate Internet domain aliases fields in the Global Domain document If there is no Global Domain document the router compares the domain in the recipient s address to the server s host name For example if the message is addressed to jdoe mailhost3 acme com and the router is on the server mailhub acme com the router knows that the recipient is in the local Internet domain Connecting the Domino mail system to the Internet Because Lotus Domino routes mail using the Internet standard SMTP routing protocol it s easy to configure the Domino system to send and receive mail from external Internet domains For outgoing mail you can use a gateway routing architecture in which only designated servers use SMTP to route mail to external domains or you can enable all mail servers to use SMTP to route mail to external domains For inbound mail you need to decide how to route mail coming in to your Internet domain from a firewall to Domino servers How you set up inbound mail depends on
30. nother test message to the Internet See step 3 Locate and open the Person document of the Sender If the Internet Address field is a Blank then populate the field with the desired value DONE b Blank and this is the intention of the Domino Admin go to Step 7 c Populated correctly call Lotus Support DONE Go back to the Conversions tab of the Global Domain document Verify the field Local part formed from is set to Common Name to ensure the local part on the left of the sign will be formed with joe user instead of joe user org Then verify the field Domino Domains Included is set to None to ensure the Y domain does not get added to the Internet address DONE 5 5 Problems receiving mail via POP3 or IMAP If you have a problem when retrieving mail over POP3 go to Step 1 fetching mail over IMAP go to Step 9 If your POP3 Client a cannot connect to Lotus Domino go to Step 2 b can connect but fails to authenticate go to Step 3 c can authenticate but cannot receive mail go to Step 4 Issue a show tasks command on the Domino console and look for POP3 Server listening for request on 110 If you a See the task listening on port 110 go to Step 5 b Do not see the POP3 Server task listening go to Step 6 Verify the user has an Internet password specified in the Person document This is the POP3 password used for authentication The User Name depends on the fo
31. nt s mail servers are in the same Domino domain but don t share either a mail server or a NNN for transfer to succeed there must be some connection between the two networks You can make a connection between NNNs by using either e a bridge server that is a member of multiple NNNs e a Connection document When a Connection document provides the information for routing mail between NNNs the source and destination networks can be in different Domino domains The document contains all of the information the router needs to locate the destination network 4 Overview of SMTP mail routing By default Lotus Domino uses the Notes routing protocol to transfer mail between servers but you can configure Domino to use SMTP to route mail instead of or in addition to using Notes routing Message transfer over SMTP routing is performed as a point to point exchange between two servers The sending SMTP server contacts the receiving SMTP server directly and establishes a two way transmission channel with it To send a message over SMTP 1 The sending server checks the recipient s address which is in the format localpart domain and looks up the domain in the Domain Name System DNS 2 DNS returns the Mail Exchanger MX record for the domain indicating the IP address of the servers in the domain that accept mail over SMTP 3 The sending server connects to the destination server over TCP IP establishes an SMTP connection on port 25 transfe
32. on TCP Port 118 Server Utility task Process Monitor Idle Agent Manager Executive 1 Idle Calendar Connector Idle SMTP Server Control task Rooms and Resources Idle IMAP Server Control task Schedule Manager Idle Directory Indexer Idle POP3 Server Control task Indexer Idle Router Idle The following example output is for the Show Tasks Time command Database Server Process Monitor 04 02 2009 15 51 05 ZE5B SMTP Server Listen for connect requests on TCP Port 25 04 02 2009 15 50 35 ZE5B SMTP Server Utility task 04 02 2009 15 50 35 ZES5B IMAP Server Listen for connect requests on TCP Port 143 04 02 2009 15 50 35 ZE5B IMAP Server Utility task 04 02 2009 15 50 35 ZE5B POP3 Server Listen for connect requests on TCP Port 110 04 02 2009 15 50 35 ZE5B POP3 Server Utility task 04 02 2009 15 50 35 ZE5B Process Monitor Idle 04 02 2009 15 50 50 ZE5B Agent Manager Executive 1 Idle 04 02 2009 15 50 50 ZE5B Calendar Connector Idle 04 02 2009 15 50 35 ZE5B SMTP Server Control task 04 02 2009 15 50 50 ZE5B Rooms and Resources Idle 04 02 2009 15 50 50 ZE5B IMAP Server Control task 04 02 2009 15 50 50 ZE5B Schedule Manager Idle 04 02 2009 15 50 50 ZE5B Figure 12 shows example output for the Show Stat Ma
33. otes IMAP clients POP3 clients or e HTTP to send the message to your Domino mail server which must be running the HTTP task The HTTP task deposits the message into MAIL BOX Web clients iNotes DWA 3 The router finds the message in MAIL BOX and determines where to send it for each recipient The router checks its routing table to calculate the next hop for the message on the path to its recipients and determines the appropriate protocol either SMTP or Notes routing NRPC with which to transfer the message e For SMTP routing the router connects to the destination server the recipient s mail server a relay host a smart host or one of the servers in the recipient s Internet domain and transfers the message e For Notes routing NRPC the router moves the message to the MAIL BOX database on the server that is the next hop in the path to the recipient s mail server The router on that server transfers the message to the next hop until the message is deposited in the MAIL BOX database on the recipient s home server 4 The router on the recipient s server finds the message in MAIL BOX on a Domino server and delivers it to the recipient s mail file 5 Using a mail client you retrieve the message from the mail file Depending on the type of mail client one of the following protocols is used NRPC IMAP POP3 or HTTP 3 How mail routing works By default Lotus Domino uses NRPC also called Lotus Notes routing or
34. ows an incorrect value change it to a correct value DONE c Shows the correct value go to Step 3 It may be the intention of the Domino Administrator to leave this field blank to restrict users ability to modify their Internet address and to allow address lookups to be performed centrally on the server s Domino Directory a If it is not the intention to leave this field blank populate it with the desired Internet address DONE b If it is the intention to leave this field blank go to Step 4 Open your Sent folder and right click on a recent message to an Internet recipient Go to Document Properties click the Fields tab second tab and look for the field iNetFrom a If you don t see this field or the field shows an incorrect value go to Step 5 b If you do see the field and it has a value equal to the Internet Address field in the Location document call Lotus Support if the problem persists DONE Open the Global Domain document in the Domino Directory Configuration folder Messaging Domains view Verify that the Notes Domain is properly listed in the Restrictions tab and then look at the Conversions tab If the Internet Address Lookup field a Is ENABLED go to Step 6 b Is DISABLED go to Step 7 You likely have a corrupt Location document Create a brand new Location document populating the necessary values compared against the old Location document Then delete the old Location document and send a
35. prompt and type telnet lt MX_hostname_or_IPaddress gt 25 Figure 5 shows successful connectivity to a Domino server notice that the version is displayed Figure 5 Successful connectivity Telnet domino802 domino amp 802 x 226 Domino8 2 in ibm com ESMTP Service CLotus Domino Release 8 8 2 ready at Tue xq 19 May 2009 16 36 52 0530 E If Telnet connectivity a Is successful but you get a 220 Domino banner go to Step 8 b Is successful but you get a non Domino banner go back to Step 5 c Fails go to Step 9 8 Step through a complete SMTP conversation via Telnet Figure 6 illustrates a successful SMTP conversation with a Domino server For assistance regarding this step call Lotus Support Figure 6 Successful conversation with Lotus Domino Telnet domino802 domino802 O x 226 Domino862 in ibm com ESMTP Service CLotus Domino Release 8 0 2 ready at Tue a 19 May 2669 16 48 21 6536 helo test com fz 256 Domino862 in ibm com Hello test com 9 182 206 881 gt pleased to meet you mail from seema test com 256 seemal test com Sender OK rept to administrator domino862 com 256 administrator domino8 2 com Recipient OK data 354 Please start mail input Hell administratior how are you Bye 258 Mail queued for delivery If the SMTP conversation over Telnet a Was successful the message was accepted for delivery and the recipient has received the message in the mail file then Lot
36. rks Lotus Notes and Domino product page http Awww iom com developerworks lotus products notesdomino S_TACT 105AGX13 amp S CMP LP Lotus Domino product information page http www 01 ibm com software lotus products domino Notes and Domino wiki http www 10 lotus com Idd dominowiki nsf Lotus Support Web site http www 01 iobm com software lotus support 11 About the authors Seema Janjirkar is a Senior Software Engineer with more than seven years of experience working in the Domino environment She is a Certified Lotus Professional CLP and is Information Technology Infrastructure Library ITIL Certified Ranjit Rai is a Technical Advisor for the IBM Technical Support Center in Pune India He is a Certified Lotus Professional CLP and has more than eight years of experience working in the Domino environment Trademarks e developerWorks Domino IBM Lotus and Notes are trademarks or registered trademarks of IBM Corporation in the United States other countries or both e Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States other countries or both e Other company product and service names may be trademarks or service marks of others
37. rs the message and closes the connection 4 1 Enabling SMTP on a Domino server Lotus Domino supports sending and receiving mail over SMTP by means of the SMTP listener task and SMTP router respectively each of which you enable separately The SMTP listener task handles incoming SMTP connections and delivers messages received over those connections to MAIL BOX It does not handle subsequent delivery or transfer of those messages You configure the SMTP listener task for receiving mail on the Basics tab of the Server document see figure 1 Figure 1 Basics tab of Server document i Server NMTP STP domino siamtinplate co th Ta P Basics Security Ports Server Tasks Intemet Protocols MTAs_ Miscellaneous Transactions Logging Shared Mail Administration Server name NMTPYSTP Release 70 3FP1 Mail Routing SMTP Mail Routing omain name STP Enabled y Qualified Intemet domino siarmtinplate co th Disabled Operating systerr Windows 2003 5 2 Intel Pantiun Is this a Sametime server No The router task for SMTP is the same the router task that handles Notes routing When a message in MAIL BOX requires transfer to another server the router determines where to send it and whether to send it over Notes routing or over SMTP By default SMTP is disabled To configure the Domino server to use SMTP to send mail you must change settings on the Router SMTP Basics tab of the Configuration Settings do
38. t to the mail file at 7 58 04AM 10 Comparing these fields with the same fields of the duplicate message allows us to determine which server is responsible for transferring or delivering the duplicate message Specifically the RouteTimes stamp that does not match with the duplicate message time stamp will correlate to the culprit server a If the RouteTimes between the duplicate messages are identical go to Step 8 b If you ve determined the culprit server go to Step 9 In the rare circumstance when the RouteTimes fields of the duplicate messages match we can only assume that the message was delivered to the mail file by the router once To confirm this check Log nsf Mail Routing Events view for the one and only one entry stating the message was delivered to the recipient Once confirmed we can deduce the cause of the duplication to be a copy agent or rule in the recipient s mail file DONE Often times third party antivirus software will change the message RoutingState to a value other than Pending rendering it un routable during a scan Another possible method for message scan is to move the message into a temporary location such as a quarantine database When the scan has completed it is the responsibility of the antivirus program to return the message to Mail box in a Pending state If however there s a malfunction with the antivirus causing the message to be placed into Mail box multiple times duplicate messa
39. the Notes routing protocol to transfer mail between servers Notes routing uses information in the Domino Directory to determine where to send mail addressed to a given user moving mail from the sender s mail server to the recipient s mail server The router for the sender s server determines the next server to which to move the message in other words the next hop on the path to the message s destination Each server uses its routing table to calculate the next hop along the route to the destination server When the message reaches the destination server the router delivers it to the recipient s mail file 3 1 How Notes routing moves a message When you send mail to a recipient with a Notes address for example Jane Doe Acme the router picks up a message in MAIL BOX to determine where to direct it The router first looks in the Domino Directory for a Person document for the recipient Jane Doe Acme The Person document contains the name of Jane Doe s mail server From this information the router uses its knowledge of the network that is the routing table to determine the next stop for the message How the Router dispatches the message depends on where the recipient s mail file is located either on the same server a different server in the same Notes named network NNN a server in a different Notes named network within the local Domino domain or a server in an external Domino domain Moving a message to a recipient on the s
40. to send twice DONE In the Document Properties Fields tab locate the RouteServers field Make note of the list of Domino servers through which this message has traversed as follows CN SERVERO02 OU ACME O Lotus CN SERVER04 OU ACME O Lotus Compare this list to the RouteServers list of the duplicate message a Lists that do not match could be the result of a Domino Directory configuration issue Call Lotus Support for further analysis DONE b If the RouteServers list matches the duplicate messages go to Step 7 If the MessagelD field values do not match we are not dealing with true duplicate messages Possible causes for inconsistent Message Ds could be third party intervention with the message most commonly seen when the antivirus scans messages in Mail box Customized agents in Mail box may also modify the field values of message NOTE Customized Mail box agents are not supported DONE Inthe Document Properties Fields tab locate the Route Times field and take note of the list of times These times should line up with the RouteServers list for example RouteServers CN SERVER02 OU ACME O Lotus CN SERVER04 OU ACME O Lotus Route Times 04 04 2006 07 58 02 AM 04 04 2006 07 58 03 AM 04 04 2006 07 58 03 AM 04 04 2006 07 58 04 AM From the example above SERVERO2 received the message at 7 58 02AM and routed it to SERVER04 at 7 58 03AM SERVER04 received the message from SERVER0O2 at 7 58 03AM and delivered i
41. us Domino is working as expected and can accept SMTP mail DONE b Appears to be successful and the Domino server claims the message was accepted for delivery but the recipient never got the message in the mail file go back to Step 3 of Section 5 1 c Fails and you get a 4XX or 5XX error message during the exchange of commands gather the error message and call Lotus Support DONE 9 Find a workstation inside the firewall and repeat the same Telnet connectivity test a If Telnet connectivity is successful the inbound SMTP problem is likely caused by the firewall blocking inbound traffic over port 25 DONE b If Telnet connectivity fails go to Step 10 10 Telnet directly from the physical server to itself If Lotus Domino is running ona Windows platform type telnet localhost 25 at the command prompt a If Telnet connectivity is successful go to Step 8 b If Telnet connectivity fails call Lotus Support DONE 5 4 Internet users get a DFR when replying to your mail In this scenario the issue is due to incorrect syntax of the Internet address A typical example of an incorrect reply address is joe user org domain domain com The intended correct syntax is joe user domain com 1 Open the Location document in the Notes Client Personal Address Book under the Advanced gt Locations view The most commonly used Location document is titled Office If your Internet Address field a Is blank go to Step 2 b Sh
42. vers within the local Domino domain are reachable via SMTP over TCPIP to Always see figure 3 Figure 3 Restricting the use of SMTP within the local domain Configuration Settings NMTP STP a is Basics Smart Upgrade Router SMTP MIME NOTESINI Settings Domino Web Access IMAP SNMP Activity Logging Diagnostics Administration Basics Restrictions and Controls Message Disclaimers Message Tracking Advanced Enabled oca SMT sllowed within the local Disabled ate erg Noles jinn domain are reachable wa SME aver TCPIP If the receiving server is running the SMTP listener servers configured to send SMTP within the local Domino domain always use SMTP to send MIME messages to destinations within the same NNN For messages in Notes format the router sends via SMTP only if the server is configured to send all messages over SMTP Sending SMTP outside the local Internet domain Enabling Domino to send SMTP to external Internet domains allows the server to transfer outbound Internet mail either directly to a host in the receiving domain or indirectly to an Internet host If a message in MAIL BOX has a recipient address that contains an sign anda domain part the part of the address to the right of the sign that does not resolve to the local Domino domain the router identifies the message destination as non local A non local address can be an RFC 821 Internet address in which the domai
43. whether your organization uses a single Internet domain name or multiple names and on the distribution of your servers Using a relay host A relay host is an SMTP server or firewall that connects to the Internet and forwards or relays inbound or outbound Internet mail A relay host can also be a DNS name that maps to multiple MX records To configure Domino to use a relay host you use two fields on the Configuration Settings document of the sending server see figure 4 Specifically add the relay s DNS or host name to the Relay host for messages leaving the local Internet domain field and enable the field SMTP used when sending messages outside of the local Internet domain Figure 4 Configuring to use a relay host E Configuration Settings NMIP STP a a a si Basics Smart Upgrade Router SMTP MIME NOTES INI Settings Domino Web Access IMAP SNMP Activity Logging Diagnostics Administration Basics Restrictions and Controls Message Disclammers Message Tracking Advanced SMTP used when send ng Enabied messages outside of the local intermatdomain i SMTP allowed within the local Disabled intemet domain Servers within the local Notes Always domain are reachable via SMTP over TCPIP Address lookup Fullname only Exhaustive lookup Disabled 1721703 for messages Using Notes routing to transfer outbound Internet mail to an SMTP server On internal Domino servers that do not use SMT
44. xists in DNS for your Internet Domain There are Web sites can be used to help with this for example www dnsstuff com If an MX record a Does not exist contact your DNS Admin or ISP to obtain an MX record DONE b Exists and points to a non Domino server go to Step 6 c Exists and points to a Domino server go to Step 7 4 Go to the Basics tab of the Server document and locate the field SMTP Listener Task Verify it is set to ENABLED and then issue a oad smtp command at the server console see Step 1 5 Third party software may be configured to listen on port 25 and then transfer mail to Lotus Domino over another port usually 26 Check whether you are running a third party SMTP listener on port 25 a If Yes contact vendor support for further troubleshooting as all inbound SMTP will be first directed to port 25 DONE b If No reset the Domino Inbound SMTP port back to 25 in the Server document Ports Internet Ports Mail tab see Step 1 6 A non Domino gateway sits between the outside world and the Domino environment a Contact vendor support for non Domino server to troubleshoot why it cannot receive SMTP mail DONE b The gateway is receiving SMTP mail but unable to transfer to Domino in which case go to Step 7 7 Use Telnet to test connectivity to Lotus Domino over port 25 from outside the firewall To do this find a workstation outside the firewall if it s a Windows platform open a command
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