At 10:03 AM 9/30/03 -0400, Jeff Koch wrote:
Can someone explain what triggers 'FORGED_MUA_OUTLOOK'. We're using 2.55 and have seen some cases where for reasons we cannot explain this is getting triggered and with the default scoring of 3.5 legit mails are getting spam filtered.
it's triggered by messages using outlook 2003.
Theres a bug open on this general topic http://bugzilla.spamassassin.org/show_bug.cgi?id=1970
Basicaly it fires off when a message claims to be outlook generated, but has a message ID which isn't consistent with the patterns of message ID's that outlook generates.
Unfortunately Microsoft keeps changing their message ID generation, making for misfires.
SA 2.60 appears to have an improved version of the rule, allowing 3 patterns of message ID's instead of 2, but I can't tell from the tests if it will catch your legitamate messages or not.
The rule, and the subrules it uses are in 20_ratware.cf, and abusing the website slightly you can quickly view a copy of 2.60's version of the rule and compare it to your own:
http://www.spamassassin.org/full/2.6x/dist/rules/20_ratware.cf
I'd suggest any of the following:
1) upgrade to 2.60 2) over-ride the score to something smaller in your local.cf:
score FORGED_MUA_OUTLOOK 1.0 1.0 1.0 1.0
3) copy the rule, and it's 3 sub-rules, out of the 2.6x 20_ratware.cf and into your 20_ratware.cf in place of the existing one.
Note: generally you should not edit the default .cf files, because upgrading or reinstalling blows them away, but in this case, you want the change to get whacked the next time you upgrade. However, it should be warned that this is slightly "dangerous". Make sure you run spamassassin --lint afterwards, but you should do that after any configfile edit.
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