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sa-learn and Outlook/Exchange [message #192] Tue, 04 September 2007 10:27
InforMed Direct
Messages: 59
Registered: May 2004
Outlook & Exchange must be a very common combination so the request is to implement some automatic method of learning whereby all the users have to do is forward a false positive to an email address.

I appreciate that you don't want to be adding in logic into Exchange so I though I had was that maybe you could support a mail forwarding service. I would forward my spam to (say) You would then process this (stripping out the forwarding maybe) and then forward on to a special email address in our domain, e.g.

Another filter could be added to pickup email to this address and pass through the learner automatically.

The reason for going via an external forwarding service is that if a user simply forwarded it internally to it wouldn't actually go through No Spam Today, Exchange would (I think) handle it internally as it's managing the domain.

Cheers, Rob.

Re: sa-learn and Outlook/Exchange [message #193 is a reply to message #192] Sat, 15 December 2007 10:36 Go to previous message
Messages: 121
Registered: February 2005
Senior Member
Rob, I had looked into forwarding earlier with exchange/outlook also.

The #1 problem I saw (at least with exchange 5.5) was that forwarding an e-mail from one mail box to another actually resulted in the mail headers being modified or worse yet - removed and replaced with info that reflected your internal mail server. If I remember correctly the bayesian engine in Spamassassin learns be looking at the WHOLE e-mail not just the message body - thus removing / altering the headers may actually change the accuracy of the later filtering.

I haven't looked recently with exchange 2000 or later, I finally gave up and just added a global mailbox that you could drag the spam into.... then learn the spam from it. That doesn't alter the headers -- and it is available to all e-mail accounts.
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