architectural question(?)

[Gennaro Esposito <es...@marscenter.it>]

Greetings
I've just joined the list and, maybe, the question has been already 
answered (even if I have found no such tread in the wiki etc...).
Well, I wish to setup a mail server with postfix (o.s. Trustix) and another 
box (Trustix too) which have to be the "mail scanner" both for spam and virii.
Obviously, the spam scanner should be SpamAssassin in the spamc/spamd 
configuration while the anti-virus shall be F-Secure (that's what I have in 
my Centre and it works like a charm both on servers - Win and Linux - and 
on clients - win and linux! ). The "glue" shall be amavis-new.
Currently I have a similar configuration where the scan-box has amavis-new 
and the Perl version of spamassassin but, while it works fine, is going to 
be very overloaded, due to the traffic growing. And I wish to start to use 
the "bayesian" feature to unload myself ;-)
In the current configuration, postfix speaks via a tcp port with amavisd - 
running on the other box -  and this one, using its rules, calls the 
f-secure AV and the Perl-SA. After the scan, the eventually modified 
message - ***SPAM*** - is sent back to postfix to be delivered to the 
user(s). (If it contains a virus, the message is quarantined and just a 
notification is sent to the final user).
OK, sorry for the long description about something that's clear to many but....
Well, the question, at last: using the two-boxes configuration, is it 
possible to arrange postfix, amavis and sa to works together? I wish to 
avoid to use mail "filters"/"pipes" and keep everithing in 
postfix/amavis/sa "central" configuration files...In other words: put away 
the perl sa and substitute it with spamc/spamd without changing anything 
else ;-)
Thank you for your answer and forgive me for my long long mail
Peace

----------
Gennaro Esposito
(System & Security Engineer)
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