On Thu, Jul 15, 2010 at 09:02:52PM +0200, Steve wrote: > > -------- Original-Nachricht -------- > > Datum: Thu, 15 Jul 2010 19:37:48 +0200 > > Von: Ralf Hildebrandt <ralf.hildebra...@charite.de> > > An: postfix-users@postfix.org > > Betreff: Re: Better spam filter for postfix > > > * Josh Cason <joc...@mychoice.cc>: > > > > > As most of you guys know. I use mailscanner. I would like > > > recomendations of what else to use. I prefer a all in one package > > > like what mailscanner does. It also utilizes clamav and spamassion. > > > > So does amavisd-new > > > > If you looking for something that is beyond just being better then I > recommend CRM114 or DSPAM or OSBF-Lua. If you insist in having the AV > included in the Anti-Spam tool then use something like DSPAM.
I'd consider those as "engines". You can run one or all of them if you really want. MailScanner, Amavisd-new, Mimedefang and even SA (as a framework) are some of the "glues" that might utilize them. Also ClamAV isn't just an "AV" tool. It's a lot more of an Anti-Spam tool when used with Sanesecurity signatures etc. There are a million combinations of glues, engines and other general anti-spam methods. You need to be very clear on your needs to get a meaningful answer (and maybe not even then). > I use all of the above mentioned and all of them are fast and accurate. > DSPAM is the one that is the easiest to scale and DSPAM is the one using > the lowest amount of memory (DSPAM alone uses on my setup less then 10MB > of memory for hundreds of domains having thousands of users in total). > From a algorithm viewpoint CRM114 is a insane tool. It offers you a lot of > algorithms and is virtually expendable to anything you like (it includes > it's own language). > > If you used SA in the past then any of the above will surprise you in > terms of speed, memory consumption and accuracy. Generally DSPAM etc require user interaction/learning. SA does not, since it's a framework of rules and plugins and can autolearn Bayes if you want to - or even do the same for DSPAM etc if you use them as SA plugins. Let's not forget that DSPAM etc also require a database backend, which might require lots of memory and/or disk, so it's not exactly "free" either. Accuracy depends heavily on configuration of all the components and other voodoo. There are no easy answers.
