SpamAssassian with FreeBSD and Big Mail Server

[Christian Damm]

Ion-Mihai Tetcu schrieb:
> On Thu, 24 Feb 2005 15:14:28 +0100
> Christian Damm <christian.damm at diewebmaster.at> wrote:
>  
>  [ ... ]
> 
> 
>>small: 1 > 10000
>>medium: 10000 > 100000
>>big: 100000 > ...
>>(i.m.h.o - it depends on who is looking at this)
>>
>>iron: im not a big fan of big "bloated" boxes in mailserver environments 
>>(sun`s and "mainframe" kind of stuff) - multiple fine tuned and 
>>carefully built x86 hosts (non SMP single CPU machinmes) running freebsd 
>>are all you need and they get cheaper every day... ;-)
>>
>>what kind of system-size/scalability you are after? 
> 
> 
>  [ ... ]
> 
> 30.000 domains (from personal sites to large traffic ones), only virus /
> spam filtering and then relaying the mail to the "webservers" for
> imap/pop/webmail access.

ok - how many users (average) per domain?

> 
> BL rejecting makes a 70% of inbound mail for top 30 of them, but still a

if not more than 70%

> hell lot of spam passes and SA just can't handle the load.

yes - thats what i said in my original posting

> 
> My dspam experience is manly with corporate LANs and such, not ISP
> installs.

with _1_ tuned mid class x86 box with plenty of ram and fast i/o running 
freebsd and postfix, you could handle this for sure! - of course using 
every useful and available anti-spam possibility offered by postfix and 
rejecting as much as you can during the smtp session. i run one email 
gateway like this for a isp (around your size) on one extremely tuned 
std. x86 host (freebsd/postfix + all useful built-in antispam 
"wizardry"/amavisd-new/clamd/vexira/gld (greylist daemon)/dspam...of 
course no pop3/imap on this box - load is around 0.5 max.

> 
> 
> 
> 

-- 

mfg.

christian damm
technische leitung
phone: dw 42
email: christian.damm at diewebmaster.at
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