True, but I thought spam detection was something that was 99% effective with bayesian filters. Sure, not all of your clients will have them, but I figure that people who are truly worried about this sort of thing will either be running their own mail servers, or will pay someone to do it for them.
I frankly cannot understand why, but on my old yahoo account at least 50% of the spam gets through, including those in suspicious russian (which, since I do not speak the language and have always flagged as spam, makes zero sense to me).
So, either the gmail engineers are better than most, or it is still not trivial to get it right.
True, but I thought spam detection was something that was 99% effective with bayesian filters. Sure, not all of your clients will have them, but I figure that people who are truly worried about this sort of thing will either be running their own mail servers, or will pay someone to do it for them.