[KLUG Members] Tuning qmail

[Luke Stroven]

> Those of you who had a performance problem with SpamAssassin, you
> are running spamd right?  According to my logs, my spamd processes
> each incoming mail on my system with SpamAssassin in 0.2 to 1.0
> seconds, typically.


Another great way to use spamassassin is with mimedefang:

www.mimedefang.org

Its written in c and perl and pretty fast when the multiplexor is used,
although the only way to use it currently is a a sendmail milter. It
also has support for clam and other AV solutions. It also does alot of
other cool things like killing attachments based on the extension,
dumping html parts from mail that has text/html and text/plain parts.
There are also some custom recipes available for use, mimedefang is very
flexible. You can view the default config here, to see how it is set-up.

http://www.rudolphtire.com/mimedefang-howto/#ss10.1

 

Spamassassin is horrible with large emails/attachents.
Most spam is generally well under 100k, so mimedefang doesn't send any
mail to spamassassin that is over 100k. 


I have a mail server with just mimedefang and spamassassin running (no
AV) and its killing 120,000 spams per day on a 2.2 celeron, 3/4 gig
memory, and an IDE drive. Load averages hover around 1.0  


-- 
Luke Stroven <stro@gnomedesktop.org>