Ed, > I'm looking to set up a spam filtering server to replace our ISP's > spam filtering service. > > I've seen this tutorial ( > ftp://orn.mpg.de/pub/unix/mail/Fairly-Secure_Anti-SPAM_Gateway_Using_SpamAssassin.html#antivirus > ) and I'd be very interested in YOUR opinion; do you think, > fundamentally, a server with these software packages could be an > effective combination at fighting spam? We're a (I guess) medium size > organization with appx. 1000 end users. > > What about weaving clam-av into the mix? > > Although this tutorial uses OpenBSD, I'll probably be using FreeBSD. > > Thank you for your input!
I use the same setting on FreeBSD with good enought results. Most of the products are from the ports. I have added to the scheme: - postgrey: grey listing is a very effective way to drop spam, at the cost of a 15 to 60 minutes delay in incoming email; - ClamAV and Kaspersky for viruses (even though there are not that many lately); they fit well in amavis as amavis was preliminarily designed to catch viruses... - procmail to handle the mail delivery and quarantine and daily summary of spam. I have 250 users. Good luk, Olivier
