4 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Spam filtering
FromSent OnAttachments
PupenoApr 29, 2005 6:34 am 
Bowie BaileyApr 29, 2005 7:40 am 
Martijn LievaartApr 29, 2005 11:41 am 
Jerry AmundsonApr 29, 2005 12:01 pm 
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Subject:Re: [courier-users] Spam filteringActions...
From:Jerry Amundson (jer@pbs.com)
Date:Apr 29, 2005 12:01:06 pm
List:net.sourceforge.lists.courier-users

On Friday 29 April 2005 13:41, Martijn Lievaart wrote:

Bowie Bailey wrote:

What performance hit? As long as you use spamd/spamc instead of calling spamassassin directly, you don't have the perl startup overhead each time. Spamd runs continuously and scans the files given to it by spamc.

I would recommend SpamAssassin. It is fast, accurate, customizable, and constantly being updated to catch the latest spams.

Spmasassassin has a fairly large performance impact. I know it has gotten one of my servers on it's knees. Now given modern hardware and not to much email, it's entirely workable and works like a charm. If either of those premisses is not met, better be prepared to do some tuning. Basically things went better by setting maxdels to 1 in local, because spamd seems to be more efficient if everything is batched as opposed to working in parallel.

Anything that does something is going to have a performance impact. (You can quote me on that... :-)

The *rules* you use to run spamassassin can have as much of an affect as actual deliveries. I once had BigEvil in place from http://www.rulesemporium.com/ but it bumped memory use so much the server started swapping, so I took it out. YMMV.

jerry