Out in the dmz we use qmail with a loop to spamassassin, for inbound traffic to our 
internal Exchange organization.

If the email is ranked as spam, the envelope gets rewritten and sent inbound to a 
quarantine mailbox which gets reviewed daily by staff.  We're grabbing over 10,000 
spams per week, with less than one (1) false positive per week (yes, that is  over 
1/10,000 or better than .9999 of reliability!)

And with the Bayesian filters - http://www.paulgraham.com/antispam.html - enabled by 
default, spamassassin automatically learns what is spam for our enterprise, and what 
isn't.  Not to mention that we can and do train the filters specifically for both 
non-spam (ham) and spam.

Our users love us.  And we love both qmail and spamassassin.  Greatest thing since 
(insert your own metaphor here.)

Jesse Wendel
Sr. Technical Systems Analyst
Primary Messaging/DNS Administrator
www.pse.com


> -----Original Message-----
> From: Ed Crowley [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, March 11, 2003 2:21 PM
> To: Exchange Discussions
> Subject: RE: SPAM blockin software recommendations.....
> 
> 
> There are lists of them at http://www.slipstick.com and
> http://www.mail-resources.com.
> 
> Ed Crowley MCSE+Internet MVP
> Freelance E-Mail Philosopher
> Protecting the world from PSTs and Bricked Backups!T
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Brian Dugas
> Sent: Tuesday, March 11, 2003 6:36 AM
> To: Exchange Discussions
> Subject: SPAM blockin software recommendations.....
> 
> 
> Good Morning,
> 
> I am currently using Trend eManager to block SPAM(in trial version
> still), it is not appearing to be very effective. What are some other
> options for blocking SPAM?
> 
> Thanks in advance.
> 
> Brian
> 
> 
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