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How to investigate Exchange 2000 server message tracking

Posted on 2009-06-30
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Last Modified: 2012-05-07
As the administrator I got a "system undeliverable" message saying the email could not reach it's intended recipients.  When I search the logs using message tracking, I find the email is from "<>".  Does anyone know what this means?
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Question by:mbaker100196
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Mestha earned 500 total points
ID: 24746238
That just means it is a system message. Was the message from outside? Are you not using recipient filtering?
It may well have been a spoofed message that has NDRd back to your server.

Simon.
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by:mbaker100196
ID: 24746557
recipient filtering is not available on exchange 2000
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by:Mestha
ID: 24746852
Doesn't matter - it can be added via a third party tool, and I would suggest that you do so. Exchange 2000 cannot defend itself against directory harvest attacks.

Simon.
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