Frozen Queues Detected
Topic Last Modified: 2006-05-03
The Microsoft® Exchange Server Analyzer Tool queries the ExchangeLink Microsoft Windows® Management Instrumentation (WMI) class to determine the value of the StateFrozen key for the Simple Mail Transfer Protocol (SMTP) queues on a server.
If the Exchange Server Analyzer finds that the value of the StateFrozen key for any one of the SMTP queues on an Exchange server is set to True, the Exchange Server Analyzer displays an error.
A frozen queue means the transport sessions for that queue are stopped. A frozen queue prevents outgoing messages, although new messages can be added. You can manually change the state of a connection by using the shortcut menu on each link queue. When you use the Force Connection command to change a queue state to Active, you immediately enable a connection that sends the messages from that queue.
For information about the particular SMTP queues that are affected and the possible cause, see the following Exchange Server Analyzer Tool articles:
- 'Messages awaiting directory lookup' Queue is Frozen
- 'Messages waiting to be routed' Queue is Frozen
- 'Messages Pending Submission' Queue is Frozen
- 'Local Delivery' Queue is Frozen
- 'Remote Delivery' Queue is Frozen
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)