Re[2]: SpamAssassian with FreeBSD and Big Mail Server
From: dima (_pppp_at_mail.ru)
Date: 02/24/05
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To: Suporte Matik <asstec@matik.com.br> Date: Thu, 24 Feb 2005 14:32:15 +0300
>>> 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
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> > >>
> > >>--
> > >>
> > >>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!
>
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- Previous message: Suporte Matik: "Re: SpamAssassian with FreeBSD and Big Mail Server"
- In reply to: Suporte Matik: "Re: SpamAssassian with FreeBSD and Big Mail Server"
- Next in thread: Christian Damm: "Re: SpamAssassian with FreeBSD and Big Mail Server"
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