Hi,
My appologies if this topic has been covered already. I did do some searching though and didn't come up with anything. I am looking at 2.60 rules/50_scores.cf and am noticing that there are almost no negative local rules. I am actually tweaking my 2.54 rules and was thinking about removing all of the negatives when I thought I would look at 2.60 to see what has been done there. As I mentioned I don't see many negatives and am wondering if the rule sets are going away from them. And if so why?
Any comments would be appreciated.
Well, the first thing to realize is that 2.60 is a CVS "under devel" version, so the scoresets there should be taken with a HUGE grain of salt. They aren't always in a state where they've been properly GAed against a corpus.
That said, due to abuse by spammers, the easily forged rules are likely to start disappearing, or having very little score impact. In particular I'd expect to see the User-Agent and X-Mailer rules heavily hit by this.
Spammers are getting smart to SA and are trying to put in all the "big negative score" rules they can. The abuse of the pine, mozilla and "good outlook" rules in 2.50-2.53 are a great example of this. If something occurs in spam just as much as nonspam, it no longer makes a good rule and winds up being dropped.
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