The gateway and forwarding to exchange are easy, however getting spammyDo a google on imap sa-learn. It is a version of sa-learn that can use an imap mailbox.
messages that pass the filter back to the gateway for sa-learning has got me
stuck. I have seen some of the suggestions in the archives but,
Create an IMAP folder for your account called CRAP and put all the bad email in there. Create one called HAM as well for good email. Then use the imap-sa-learn to learn from your SA machine to your exchange mailbox.
Martin
