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How to check if a computer is sending out Spam

Posted on 2011-02-17
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What is a good program to check network traffic, and be able to pick up on whether a computer is sending out Spam?
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Question by:Christian_Agard
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MikeKane earned 1000 total points
ID: 34918447
Wireshark will do a packet capture.   You can easily see if smtp traffic is being sent out.      
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by:ketanaagja
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ID: 34918710
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by:sysreq2000
ID: 34919564
Also if you have a router check the router logs for unusually numerous SMTP traffic, or port 25 traffic.
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by:arnold
ID: 34919684
Block the outbound SMTP connections from any system on your network with the exception of your internal relay server.
This way you can look at the logs on your internal mail server and depending on the mail server you have, you could use/implement a mechanism that will curb the inordinate influx of outgoing emails from single source.
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by:younghv
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This question has been classified as abandoned and is being closed as part of the Cleanup Program. See my comment at the end of the question for more details.
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