I'm looking for comparisons and/or reviews of the various Bayes-specific anti-spam engines -- Spamassassin, Bogofilter, etc. Gathering features, performance, ability to tune, actual application in the real world (commercial), etc.
If anyone knows of such resources or has performed these, I would appreciate hearing.
Here's a good bit comparing a large number of bayes tools in a rather offhanded manner, but still a good read. Strangely acknowledges SA's bayes but "doesn't feel like using it" :)
http://urchin.earth.li/~twic/bayesian-spam-filters.html
Here's some real tests for a more mathematical approach:
http://freshmeat.net/articles/view/964/
