Date: Thu, 24 Feb 2005 14:32:15 +0300 From: dima <_pppp@mail.ru> To: Suporte Matik <asstec@matik.com.br> Cc: freebsd-isp@freebsd.org Subject: Re[2]: SpamAssassian with FreeBSD and Big Mail Server Message-ID: <E1D4HE7-000Ah8-00._pppp-mail-ru@f17.mail.ru> In-Reply-To: <200502240816.27991.asstec@matik.com.br>
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>>> I would like to try dspam as well as I am using spamassassin, but dspam >>> are leak of docs on postfix supporting, and no one got experience with >> >> i can encourage you to do so - you wont regret it: the statistical spam >> filtering methods in dspam are miles ahead spamassassin`s (spamassassin >> on the other hand is an antispam framework where so many things can be >> done (rbl`s, razor, dcc, spf etc.) - i do things like rbl checking >> (wirespeed) on the smtp level with postfix so i dont mind. >> the postfix integration is dead-easy, really. the dspam docs could be >> better but the dspam mailinglist is quite helpful if you got questions. >> also consider using one of the many postfix/dspam/etc. howto`s out there: > > I am not so sure here > I tried several different setups of Dspam and on small test servers 100 users > or so it actually worked but even so the false-positive rate was very high, > actually too high. > But another test server with only 2000 user dspam is lost already and it > didn't matter which store method I tried out, even a MySQL for it only. It > runs a day or two but soon a spam wave comes in message delivery time grows > up, memory goes up, the queue fills the disks and swap is eaten until the > server goes down on his knees. When I tried to get some numbers nobody > answered clearly and I only hear ohh I have lots of users but I never saw > something real. > > spamassassin on the other side with good rules maintanance is hitting fine, I > get almost no false-positives and almost all spam is correctly identifies > which we drop into a spam folder with procmail. That is cool, no memory > excess and absolutly stable and reliable. We use some connection and header checks before processing the actual message with antivirus/antispam software. It drops a lot of bad messages, so the dual p3 is able to process 50K+ useful messages a day without any problems. >> http://devnull.com/kyler/dspam.20040609.html >> >>> dspam+Spamassassin together, so... >> >> the latest amavisd-new versions got dspam support - anyway its a little >> bit "hacky" at the moment i.m.h.o, so i wouldnt really use it on >> production hosts (some might disagree in small mta environments). >> >>>>Vahric MUHTARYAN schrieb: >>>>>Hi Everybody , >>>>> >>>>> Really I don't know can I say a big mail server which have >>>>>30,000 mailbox on it 1200+ simultaneously connections >>>>>(pop,smtp,webmail). >>>>>Ýncoming smtp connections are between 200-400 . We want to run spam >>>>>software >>>>>on it but machine can't handle it for this reason we seperated machine >>>>>freebsd+exim+SpamAssassian but on 400 connection machine goes down >>>>>average >>>>>is very high , cpu usage really too high . >>>>> >>>>> I want to learn Anybody Who have closer or bigger system and >>>>>using SpamAssassian ?! >>>>>Really this 400 connection simultaneously can be limit for spam software > > >>>?! > > >>>I mean Anybody can handle more ?! > > >>>I have to design distributed environment ?! > > >>> > > >>>My Hardware is (for spam) > > >>> 2 X PIII 1G + 1 GB RAM + 2 DISK RAID 0 SCSI 10000 RPM > > >> > > >>i use spamassassin only on small-/medium-sized MTA installations (its a > > >>memory/cpu hog i.m.h.o. but i like it) - on all my "bigger" systems i > > >>really prefer dspam (coded in straight C and fast as hell). it is used > > >>in some environments with 350,000 email users and scales really well (if > > >>you have the iron and experience to build/maintain such a > > >> system/cluster). > > >> > > >>http://www.nuclearelephant.com/projects/dspam/ > > >> > > >>>Thanks > > >>>Vahric > > >>> > > >>>_______________________________________________ > > >>>freebsd-isp@freebsd.org mailing list > > >>>http://lists.freebsd.org/mailman/listinfo/freebsd-isp > > >>>To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" > > >> > > >>-- > > >> > > >>mfg. > > >> > > >>christian damm > > >>technische leitung > > >>phone: dw 42 > > >>email: christian.damm@diewebmaster.at > > >>icq at work: 124464652 > > >> > > >>die webmaster - flötzerweg 156 - 4030 linz - austria > > >>phone: +43-732-381242, fax: +43-732-381242-22, isdn (leonardo): > > >>+43-732-381242-33 > > >>homepage: www.diewebmaster.at, public email: office@diewebmaster.at > > >>_______________________________________________ > > >>freebsd-isp@freebsd.org mailing list > > >>http://lists.freebsd.org/mailman/listinfo/freebsd-isp > > >>To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" > > > > > > !DSPAM:421d64a4175283000910921! > > -- > > > Infomatik > implementamos asas na sua rede. > (18)3551.3591 (18)8112.7007 > _______________________________________________________ > Participe! FreeBSD - Security - Wireless e outras > Entre em http://listas.matik.com.br e inscreva-se! > _______________________________________________________ > Mensagens sem assinatura GPG não são nossas. > Messages without GPG signature are not from us. > _______________________________________________________ > > ATTACHMENT: application/pgp-signature >
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