On Tue, Jun 03, 2003 at 11:22:39PM +0800, Federico Sevilla III wrote: > Hi everyone, > > On Freshmeat, I ran into this program called DSPAM[1] by the Network > Dweebs Corporation. Similar to Bogofilter, it uses Bayesian filtering. > Unlike Bogofilter, it seems more designed for server-wide deployment, > designed to work as the system's MDA. > > It looks pretty interesting, but I haven't tried it out, largely because > there is no Debian package yet, and I don't have time to build one > myself right now. > > I'm curious: what do those who have server-wide anti-spam deployments > here use, aside from SpamAssassin (which I already use and am not > interested in me-too's for)? How easy or difficult have they been to set > up and maintain? How effective are they? > > Thanks in advance for your time. :)
I use the following setup for email, which is not only "system wide" but also "isp wide": Exim 4 (MTA) SpamAssassin F-Prot (virus scanning) MailScanner (www.mailscanner.info) for tying it all together MailScanner basically takes messages from an inbound queue, runs virus and spam checking on them, then moves them to another queue where they await final delivery. Exim actually runs twice, once as an inbound queue and again as a delivery agent. MailScanner is very fast, which is good since SpamAssassin often takes a little more time. Still, I've found that an Athlon 500 is capable of processing many thousands of emails per hour. Far more than what I need at this point. Anyway, I need to have a better way to do Bayesian filtering, but that probably means setting up an email address where people can send known spams and another where they can send false-positives. As it is, SpamAssassin generally catches 93% of my spam (long term average) with few enough false positives that I never check the spam folder. All but one or two false positives that I've ever received were either legitimate list email or come through an open relay. (such as the one at smtp.unwired.net, which Expedius has been operating for some time (and yes, they know about it, just too clueless to fix it)) Note that, as a policy, I do not bounce email based on blackhole lists, spam checks, etc. The only email that my server doesn't transfer based on content are known worms, such as Klez, that have no content or value. I would highly recommend that you check out MailScanner, as it provides tons of options (almost too many) for dealing with email. Michael -- Michael Darrin Chaney [EMAIL PROTECTED] http://www.michaelchaney.com/ -- Philippine Linux Users' Group (PLUG) Mailing List [EMAIL PROTECTED] (#PLUG @ irc.free.net.ph) Official Website: http://plug.linux.org.ph Searchable Archives: http://marc.free.net.ph . To leave, go to http://lists.q-linux.com/mailman/listinfo/plug . Are you a Linux newbie? To join the newbie list, go to http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
