On Wed, 03 Jun 2009 11:28:59 -0400 Adam Katz <antis...@khopis.com> wrote:
> The other is RelayCountry, which you'll have to enable in init.pre, > which lets you discriminate against countries rather than just their > domain names. > > This discrimination is unfair and quite prone to biting back at you, > for example when you can't get mail from a legitimate contact in Hong > Kong or a hotel in Paris. RelayCountry can be very powerful if it's personalized, and sensibly scored. In my case mail that passes through a country that doesn't routinely send me ham scores 2 points, unless it's in my "axis-of-evil" list, in which case it scores 4. About 90% of my spam hits one of these and about 30% hits the higher level (obviously I don't score mailing list addresses like this). Legitimate emails occasionally pick-up 2 points, I've never seen it cause an FP. For me it's comparable with BAYES or URIBL lists, and it's very hard for spammers to get around it. It seems sensible that some countries should be scored at least enough so that BAYES_99 puts their spam over the threshold.
