On Thu, 09 Sep 2004 20:02:19 -0400, you wrote:
-----Original Message----- From: JW
To: suse-linux-e@suse.com Date: Thu, 9 Sep 2004 16:43:08 -0500 Subject: [SLE] Look for opinions: Best Email server w/ virtual domain and anti-spam functionaliy? Recently we have had to shut spam assassin off of our qmail server because it was running the load average so high that it was ceasing to function properly.
FWIW, I've found postfix to be MUCH faster and less resource intensive that either sendmail or qmail (I tried all 3). Spamassassins requirements have much to do with the options that you have configured, which version of spamassassin, and exactly how you're trying to do things. For example, using postgres or mysql for user settings and black/white/grey lists speeds things up while reducing memory footprint. Rulesets also have a direct impact on processing speed as well as memory footprint. The speed and congestion of your pipe also impact spamassassins speed if you're using any of the DNSRBLs, pyzor, razor, DCC, and so on. How are you running spamassassin, what virus testers, and so on? I'm using the most recent amavisd-new and have noticed that the speed has increased since 2 versions ago by around 12% on the same hardware. Unless it's an artifact of a new kernel or something, but still... And clam and f-prot are both run against any incoming binaries - those speeds have been pretty constant for the last year, as near as I can tell. Spamassassin 3.0 adds an enormous amount of functionality while reducing memory requirements AND increasing speed, but it's currently in pre4 so I don't know if you want to try it just now. I'm on pre3 here & now and my mail server isn't even breaking a sweat on a message every 8 seconds (roughly), on a _very_ heavily loaded P4 with a gig of ram. You don't mention anything concrete in your message - number of users, available memory, observed processing speed, etc., so it's not easy to offer a concrete recommendation. Mike- -- If you can keep your head while those around you are losing theirs... You may have a great career as a network administrator ahead! -- Please note - Due to the intense volume of spam, we have installed site-wide spam filters at catherders.com. If email from you bounces, try non-HTML, non-encoded, non-attachments,