'Messages waiting to be routed' Queue is in Retry
[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]
Topic Last Modified: 2006-05-17
The Microsoft® Exchange Server Analyzer Tool queries the ExchangeLink Windows® Management Instrumentation (WMI) class to determine the value of the StateRetry key for the Simple Mail Transfer Protocol (SMTP) Messages waiting to be routed queue.
If the Exchange Server Analyzer finds that the value of the StateRetry key for the Messages awaiting directory lookup queue on an Exchange server is set to True, the Exchange Server Analyzer displays an error.
If a queue is in retry status, this status indicates that at least one error occurred in the previous attempts to process the messages in the queue. You can change queues in the Retry or Scheduled state to Active with the Force Connection command. This causes the queue to function as if the retry interval had passed or the scheduled time was reached. However, this method may not always work.
The properties of a queue can indicate a specific reason for a queue to be in Retry.
The Messages waiting to be routed queue holds messages until their next-destination server is determined and then moves them to their respective link queues.
Messages accumulate in this queue if Exchange Server routing problems exist. Message routing may be backed up.
To resolve this error, increase diagnostic logging for the MSExchangeTransport service to collect information about Categorizer components. Disable any unnecessary connector restrictions because the restrictions can cause a significant degradation in server performance. You may have to turn on the CheckConnectorRestrictions registry key for some restrictions.
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).