Mailscanner/Spam Assassin support for
MicrosoftIMF/SCLSpamscoring?
Duncan, Brian M.
brian.duncan at kattenlaw.com
Fri Oct 13 16:21:11 IST 2006
>I'm not an exchange person and I am thinking out loud here but would
the "X-MS-Exchange-Organization-SCL:" header be ignored if it is added
>from another relay, how would it make sure that the header is genuine?
>I do agree that this would be a great feature to get working though, as
it seems the only other way to achieve this is to use commercial
>software called IMF tune that allows exchange to set the SCL score from
the "X-Spam-Status: Yes" header.
>Dean.
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I don't think that Exchange acts on any X-Header for SCL values (At
least nothing that I have tried so far). I tried everything to get
messages to wind up in the Junk Mail folder through only X-Header
modifications. I had no luck.
I finally wound up using http://smtptracker.com It is only 35.00 for an
enterprise license and 500.00 for the source code if you need it. The
University of Florida has been using it for 2 years now. It is just a
transport that sits on an exchange server that adds the SCL onto passing
messages going by that have failed your Spam Assassin check. Whatever
it adds to force junk mail folder is NOT X-header based. It's some
custom exchange attribute I believe. I even opened a call with
Microsoft to see if there was some x-header I could add to guarantee a
message would wind up in Junk Mail folder. I was told that the SCL
value is in some extended attribute in each message. (documented in
Exchange 2007 beta as being an x-header, maybe they are changing this
moving forward? I don't know)
We are not actually using smtptracker.com in production yet, I am
waiting till my exchange guy verifies if it is cluster friendly.
It is nice to see that there is another product that supports tagging
messages. (IMF tune)
If anyone has successfully manages to get Exchange to act on any
X-headers added to a message please post how you did it.
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