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Old 11-19-2003, 05:20 AM   #1
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Registered: Aug 2003
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Unhappy Forge email address

Someone forged an email address from my domain (e.g. and send a mail to one of my users (e.g. The email attachment contains virus!!!

I reviewed the email logs and found the following:

Nov 19 15:28:44 mail sendmail[28805]: xxxxx: from=<>, size=xxxx, class=0, nrcpts=1, msgid=<>, protocol=SMTP, daemon=MTA, relay=<a host name> [an IP address]

Not sure if I should disclose the relay info here...

A few questions which I hope you can help me out:

- how to prevent this in the future?
- how can this be done? apparently, it's simply?!!?
- Should i do sth to follow up on this incident?

Thank you for all your help!!! Much Much Much appreciated!!!

Old 11-19-2003, 06:21 PM   #2
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Registered: Jul 2003
Location: Silicon Valley, USA
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
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Many e-mail worms forge the address of someone in the address book of their victim. For the rest of your questions, see this thread:


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