Peter J. Holzer wrote:
> [...]
I think validating recipients at the MX is something like a minimum
requirement for anyone running a mail server. Accepting an email and
then sending a bounce is very rude.
Agreed. I meant, but didn't say, "There are other ways to reduce/remove
backscatter than check_delivery".
> [...]
Have a look at the following core plugins:
check_badmailfrom
check_badrcptto_patterns
check_badrcptto
check_spamhelo
I don't think these solve the problem.
Yep. They are part of the solution to removing unwanted mail in general,
but not for backscatter.
check_goodrcptto extn -
^^^^^^^^^^^^^^^^
Is that one new in trunk? It isn't in 0.31.1.
My apologies. It's in Gavin Carr's plugin set, most of which have made
it into the trunk:
[EMAIL PROTECTED] rpm -qf check_goodrcptto
qpsmtpd-plugins-0.0.1-sme04
That one, or something similar, is critical to killing back-scatter
since you can explicitly list valid recipients, including extension
addresses.
I noticed that the SRPM is not on the mirrors - it will be here soon:
http://mirror.contribs.org/pub/smeserver/releases/7/builds/rpms/SRPMS/
or direct from CVS:
http://cvs.sourceforge.net/viewcvs.py/smeserver/
Thanks,
Gordon
