[NTLUG:Discuss] More spamshield project

[. Daniel]

Just to recap, here's what I've got so far:

The goal is to make an external SMTP relay box that checks for spam and 
eventually forbidden attachments and sends the good stuff on to an internal 
MS Exchange server.

What works:
* CentOS and the basics (sendmail, webmin, etc)
* Greylisting (Endless thanks to Wayne)
* Connecting to the Active Directory to test for valid accounts (Thanks to 
Chris!)
* Relaying incoming mail to Exchange via SMTP (piece of cake)

What doesn't work:
* SpamAssassin isn't checking the relayed email.
  (It does check local delivery though. Procmail calls SpamAssassin.)
* Forbidden attachment scanning (haven't even gotten there yet)

I have gotten to the point where I am too sleepy to think or read any 
further.  This combination of tools and the goals are not unique.  I just 
haven't found the missing details yet.  I'm guessing somene here already 
knows the answer though.  Anyone got anything?

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