how come that mails listed in Razor get only +1.6 points? Is razor not to be trusted? I'd think, that if the hash is listed, it's 100% spam, and as that it should get like +100 :/
If you think razor is 100% spam-only you obviously haven't used razor very much. I've had many false positives on razor over the years. Mostly on oddball mailing lists for tech vendors. For example about 2 years ago, every product release letter Versalogic sent out was listed in razor. (Versalogic is a maker of embedded computer boards, and spamming would not be very useful to them)
The problem seems to largely be the result of broken spamtraps containing old addressees that weren't removed from legit mailing lists. Also more recently the introduction of e8 has caused a spike in FP rate due to lack of sufficient reports to stabilize the values.
If you don't belive me that razor does have FP's, check the STATISTICS.txt numbers.. The S/O's are pretty high, but they are NOT 1.0. Razor isn't perfect, and it DOES hit on legitimate mass-mailings at times.
As for the score, keep in mind that RAZOR2_CHECK and RAZOR2_CF_RANGE are additive. In SA 2.63 an email with a razor CF score of 51 or up will get a total 2.451 or 2.148 points, depending on wether or not you use bayes.
Another thing: How well does language recognition in SA work? I'd like to give mail that's written in Slovene, say, -20 points, since it's almost never spam.
It's done using a tripplets dictionary IIRC, however I don't think there's any support for any kind of "white" language rules.
You could theoretically hack the rule and make the UNDESIRED_LANGUAGE_BODY rule into a DESIRED_LANGUAGE_BODY rule instead, by negating it and reversing the score. However, you'd have to eliminate the original rule to do it (otherwise everything that isn't Slovene would get positive points)
