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Re: [cobalt-security] Sendmail error messages?



"Steve West" <wppiphoto@xxxxxxxx> wrote:
<snip>
> I'm trying to figure out what all of these messages mean that are being
> generated on a Raq3 box? Is someone trying to use our box to relay spam
> mail? And if so, how can I stop them?
> 
> My fear is that stuff is getting through because these error messages are
> only stating that "Sender domain must exist". So, I assume that if the
> sender domain was a valid one, then sendmail will relay their e-mail?
> Correct me if I'm wrong.
</snip>

See my reply on cobalt-users.

-- 
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/