Test Message Sitting in SMTP Queue
Topic Last Modified: 2006-07-06
The Microsoft® Exchange Server Analyzer Tool sends a test message from the Exchange server to the Postmaster account or a user-defined account for the Simple Mail Transfer Protocol (SMTP) domain and then scans the message tracking logs of the server to determine whether any issues were found with the delivery of the test message.
As a part of this scan, the Exchange Server Analyzer queries the EntryType property for the Exchange_MessageTrackingEntry Microsoft Windows® Management Instrumentation (WMI) class under the root\MicrosoftExchangeV2 namespace to determine why the message tracking log entries were created.
The following table lists the possible EntryType values returned.
Message received through X400
Message transferred out
Report transferred out
Distribution list expanded
Server downgraded by MTA
Unroutable report discarded
Message deleted by Administrator
Probe deleted by Administrator
Report deleted by Administrator
Message delivered locally
Message transferred in over backbone
Message transferred out over backbone
Message transferred out over gateway
Message transferred in over gateway
Report transferred in over gateway
Report transferred out over gateway
SMTP: Message queued outbound
SMTP: Message transferred out
SMTP: Inbound message received
SMTP: Inbound message transferred
SMTP: Message rerouted
SMTP: Report transferred in
SMTP: Report transferred out
SMTP: Report generated
SMTP: Report absorbed
SMTP: Message submitted to Advanced Queuing
SMTP: Started outbound transfer of message
SMTP: Message sent to badmail directory
SMTP: Advanced Queue failure
SMTP: Message delivered locally
SMTP: Message submitted to Categorizer
SMTP: Started message submission to Advanced Queue
SMTP: Advanced Queue failed to deliver message
SMTP Store Driver: Message submitted from Store
SMTP Store Driver: Message delivered locally to Store
SMTP Store Driver: Message submitted to MTA
SMTP: Non-delivery report (NDR) generated
SMTP: Message transferred out
The Exchange Server Analyzer displays an error if the EntryType values returned indicate the following conditions are true:
The test message tracking log can be scanned successfully.
The test message did not successfully transfer out of the queue.
A Non Delivery Report (NDR) was not generated for the test message.
The test message was not transferred to the Badmail directory.
The test message is not queued for remote delivery.
The test message was not successfully delivered to the local store.
The test message is not scheduled to retry categorization.
The test message is not scheduled to retry routing.
The test message is not scheduled to retry local delivery.
This error means that the test message is sitting in one of the SMTP queues and additional analysis is necessary to determine the reason it is stuck there.
To resolve this error, use the NSlookup utility to review possible issues with Domain Name System (DNS) resolution. For connection and protocol issues such as Host unreachable errors, use Telnet.exe to try to connect to the destination computer. To troubleshoot protocol errors, increase diagnostic logging for the MSExchangeTransport service for the SMTP component, and review the logs for errors. Alternatively, you can use the Network Monitor (Netmon.exe) tool to obtain information about network connection errors. To reproduce the problem, you may have to force the queue to try again. Examine the event log for possible errors associated with the Microsoft Exchange Information Store service.
For more information about how to modify logging settings, see "How to Modify Logging Settings for MSExchangeTransport" in the "Troubleshooting Mail Flow and SMTP" section of the Exchange Server Transport and Routing Guide (http://go.microsoft.com/fwlink/?LinkId=47579).
For more information about how to troubleshoot SMTP queues, see the following Exchange resources:
"Troubleshooting Mail Flow and SMTP" in the Exchange Server Transport and Routing Guide (http://go.microsoft.com/fwlink/?LinkId=47579).
Microsoft Knowledge Base article 823489, "How to use Queue Viewer to troubleshoot mail flow issues in Exchange Server 2003" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=823489).
Microsoft Knowledge Base article 821877, "Description of Fields on the SMTP and X.400 Queue Properties Tabs" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=821877).
Microsoft Knowledge Base article 264054, "XCON: Understanding Queue States in Exchange 2000 Server" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=264054).