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Posted on 2008-06-13
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Last Modified: 2010-03-06
Message staying in Exchange Queue > Default SMTP Virtual Server> Message waiting to be routed) for Hours
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Question by:sf1elds
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kdearing earned 250 total points
ID: 21783521
The following links should help you:

First, check for open relay and clean up your server-
http://support.microsoft.com/kb/324958/en-us

Second, prevent future reverse-NDR attacks-
http://support.microsoft.com/kb/886208/en-us
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