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Infamus

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Someone's computer is spaming email in the organization using an email address other name company email address

I was getting a lot of NDRs this morning and I traced what is generating those NDRs.
Then I found out this email address "spam@spam.com" is generated from inside of our company and passed through our smtp and sending emails to bunch of people.
How do I trace down which ip is sending this email?
I blocked this email address from sender filtering and it is saying that I need to enable this filter in smtp connector. How do I enable this?

Thanks for all your help
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MentorJay

Is your smtp operating as an open relay?
http://www.abuse.net/relay.html

If so, the computer could be anyone on the net, and you should secure your server.
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ASKER

It's not open relay....
ASKER CERTIFIED SOLUTION
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Sembee
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ASKER

Thanks.  These are good articles.