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Monday, June 30, 2008

"Messages awaiting directory lookup" SMTP queue in Exchange 2003

Suddenly you see an error "Messages awaiting directory lookup" on one of your Exchange Server 2003. Email cannot be send to/from those Exchange Server. They just stuck on your SMTP queue. Your other email server is working normally.

One area that you might want to check when you see this error message in your Exchange Server is whether your storage group configured for Journalling or not.
If the answer is yes, you might want to check about the account that you use for Journalling.
In my case the account was move to other OU and simply return it back to the original OU resolve the issue.

There is a Microsoft Knowledge Base 884996 that you might want to check for further Information regarding this matter.

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