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Exchange Non-Delivery Messages

Posted on 2013-01-16
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Last Modified: 2013-01-21
I'm running Exchange on a Windows 2003 server.  What would cause non-delivery receipts to be delivered up to two months from when the original email was sent?

I've paid a tech to investigate the problem and he can find nothing wrong.
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Question by:nplanek
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Alan Hardisty earned 500 total points
ID: 38784731
The lack of installing the following patch would be the cause:

http://support.microsoft.com/kb/950757/

Known as the greylisting bug, it will cause mails to appear suddenly after the Information Store service is restarted or the server is rebooted.

Install the patch and the problem will go away.

Alan
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Author Closing Comment

by:nplanek
ID: 38801551
Thanks for the quick response and knowing your stuff!
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LVL 76

Expert Comment

by:Alan Hardisty
ID: 38801579
You are welcome.  It is one that crops up from time to time, so have come across it before.

Glad it has solved the issue for you.

Best wishes

Alan
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