atom feed8 messages in net.sourceforge.lists.courier-users[courier-users] SPAM filters (was: m...
FromSent OnAttachments
Mark ConstableOct 12, 2006 7:21 pm 
Sam VarshavchikOct 13, 2006 4:06 am 
Mark ConstableOct 13, 2006 5:08 am 
Shawn M. JonesOct 13, 2006 5:24 am 
jero...@free.frOct 13, 2006 5:27 am 
Aine DouglasOct 13, 2006 6:17 am 
Bowie BaileyOct 13, 2006 9:45 am 
Mark BucciarelliOct 16, 2006 6:04 am 
Subject:[courier-users] SPAM filters (was: mail queue purge)
From:Shawn M. Jones (sm@littleprojects.org)
Date:Oct 13, 2006 5:24:15 am
List:net.sourceforge.lists.courier-users

BTW can anyone suggest a more efficient spam filter other than Spamassassin ?

I use the Spamhaus and Spamcop blocklists, SPF, clamav, spamassassin, razor, pyzor, and dcc.

Courier can be easily configured to use blocklists. They stop known SPAMmers from even getting a message on the server.

SPF is tricky. Because not everyone has implemented it, you have to accept everything except mail from hosts that thoroughly fail SPF. It stops many phishers in their tracks.

ClamAV gets rid of many phishing emails in addition to virii.

Spamassassin will call razor, pyzor, and dcc if it finds them on your machine and use their input to make its decisions.

Other than that, I've tried Bayesian SPAM filters, but didn't like having to keep large archives of SPAM around to retrain them every once in a while.

Hope this helps,

Shawn M. Jones