Month: May 2007
Making Exim reject spam at SMTP time
davee, Exim now has a built in interface to spamd. That’s what I use and it’s also what we use on lug.org.uk. It’s very simple:
# put headers in all messages (no matter if spam or not) warn message = X-Spam-Score: $spam_score ($spam_bar) spam = nobody:true warn message = X-Spam-Report: $spam_report spam = nobody:true # reject spam at high scores (> 12) deny message = This message scored $spam_score spam points. spam = nobody:true condition = ${if >{$spam_score_int}{120}{1}{0}}
You’ll need exim4-daemon-heavy on Debian sarge or etch.
I also recommend having some HELO checks before spamassassin, and virus checks after it. Exim can also call out to clamav to reject viruses at SMTP time.
Linux virtualisation
Inotify
Pete, I would suggest making any inotify functionality completely optional, as some filesystems don’t support it and not all kernels have support either.
The fact that upstart doesn’t work without it is extremely annoying sometimes (last checked in Dapper; may have been fixed since).