SMTP mail relay server for SPAM filtering

[Craig White]

On Thu, 2002-06-20 at 01:03, Scott Henderson wrote:
> My company, like many, I'm sure, is wrestling with spam email. 
> Currently we're handling it manually, creating blocks on our
> Exchange server based on IP addresses.  We are not being given
> any budget to solve this problem, but we do have a few spare
> servers sitting around.  I'm thinking this may be an opportunity
> to show the MS-based IT Dept what can be done with some Open
> Source software.  I'd like suggestions on how to set up an SMTP
> mail relay box and anti-spam software.  I have a year or so
> experience with a few Linux distros on my desktop and laptop at
> home, so I'm no wizard, but I can usually find my way around. 
> Is this doable? We average around 6-700 SMTP emails per hour
> during the day, and spike to maybe 1500 on occasion.  I want to
> set the box up inside the DMZ, in front of the Exchange server,
> and just have it relay to and from that box.  What distro?  What
> software?  How to config?  Any HOWTOs on this or other resources? 
> Thanks much! 
----
spam assassin

<http://spamassassin.org/>

use whatever distro.

I would have this box the primary mx for incoming mail. Check it with
spam assassin and then forward it to the exchange server.

Craig