We use a Linux/Exim server as an SMTP gateway, running SpamAssassin and
ClamAV through Exiscan-ACL.  Will SMTP time reject any identified spam over
a certain score and any virus laden messages, and anything left will be
forwarded on to our Exchange server.

With Exchange 2003 you can use the recently released IMF for free.
Alternatively, Barracuda Networks produces a spam firewall, which is
essentially a custom 1U server running SpamAssassin.  The benefit is that
it's very affordable (around $1200 for the basic version).

Steven
---
Steven Dickenson <[EMAIL PROTECTED]>
Computer Network Manager
The Key School, Annapolis Maryland 


-----Original Message-----
From: Chad Wasinger [mailto:[EMAIL PROTECTED]
Sent: Monday, June 07, 2004 1:56 PM
To: Exchange Discussions
Subject: SPAM blocker?


What SPAM solutions have people here on this list used or are currently
using? We are still running Exchange 5.5 and we are looking for a good
solution to block the majority of SPAM messages. Upgrading to E2K3 is also
an option, but I am not sure if it has anything good built in for blocking
unwanted emails?


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