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Date:      Wed, 23 Aug 2006 11:34:12 -0500 (CDT)
From:      Philip Hallstrom <freebsd@philip.pjkh.com>
To:        bsd <bsd@todoo.biz>
Cc:        Liste FreeBSD <freebsd-questions@freebsd.org>
Subject:   Re: Cluster mail system using FreeBSD 
Message-ID:  <20060823113137.P65656@bravo.pjkh.com>
In-Reply-To: <15B94964-B313-4FDD-B667-24F7D2393B8B@todoo.biz>
References:  <15B94964-B313-4FDD-B667-24F7D2393B8B@todoo.biz>

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> I am looking for the best possible solution in order to setup a High 
> availability mail cluster using FreeBSD (smtp/imap/pop server with 1000 
> accounts).
>
>
>
> Selected software are as followed :
> -----------------------------------
>
> - Postfix
> - Amavisd-new
> - SpamAssassin
> - Courier Imap
> - DCC-DCCD
> - Clamav
> - a web mail (not yet selected but probably horde)
>
>
> The idea is to offer a simple and very efficient solution in order for the 
> server to have a 100% uptime under any circumstances.
>
> I would like (if possible) to stick to software available in the ports (for 
> ease of maintenance).
>
>
> I was first thinking about using Linux-HA aka. "heartbeat" and syncing the 
> two boxes using rsync ?
>
> What other solution would you think of ?

Can't really help with the HA aspect, but I'd take a look at:

http://www.freebsd.org/cgi/url.cgi?ports/mail/postfix-policyd-weight/pkg-descr

"Policyd-weight is (as the name says) a weighted policyd for Postfix.
It uses HELO, MAIL FROM and the MTA IP address for scoring their
correctness. It also uses definable DNSBLs and RHSBLs in a scored 
fashion."

I've been using that instead of spamassassin (which can be a memory hog) 
and very little spam makes it through.  It's nice in that it doesn't even 
have to accept the message body to do it's thing.

Also, consider, clamsmtp

http://www.freebsd.org/cgi/url.cgi?ports/security/clamsmtp/pkg-descr

for tying clamav into postfix without having ot use amavisd...

And lastly, you might take a look at roundcube for webmail...

http://roundcube.net/



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