>I've had a problem with similar symptoms on my mail server a couple of
>times. But ... I found out that someone was spamming using our e-mail
>domain name rather than trying to find an account.
This is quite common, and called a "Joe Job" among anti-spam
fanatics. Probably 90+% or so of all spam that is sent uses fake return
addresses. When the spammer's mail bounces, it has to go somewhere.
This is something else that the program we are working on can help detect
(although in most cases nothing can be done about this problem).
-Scott
---
Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for
IMail. http://www.declude.com
---
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