On Wed, Sep 19, 2001 at 12:18:26AM -0400, Ben Evans wrote:
> Hi,
>
> I've been blocked from ORBZ. :) This is pretty annoying since someone is
> using my server a lot for spam. What can I do to prevent this? I have
> rcpthosts active and relaymailfrom as well...... I'm pretty new to
> qmail........
>
> Offending message:
[snipped]
If rcpthosts is populated, and the only way you're allowing relay is via
the relaymailfrom patch, odds are that's how they're spamming. That
patch always sounded like a horrendously bad idea to me. No idea how
it's configured, so I can't really recommend anything other than killing
that patch and its control files, and basing relay on IP address or
POP-before-SMTP. :)
mail-from is _so_ trivial to forge -- IMHO noone should install that
patch in a public environment. The author, Chris Johnson, seems to feel
the same way...:
http://www.palomine.net/qmail/relaymailfrom.html
--
Greg White
