http://hobbes.nmsu.edu/cgi-bin/h-search?key=bogofilt
PMMBogoFilter version 0.5.7 has also been released (1/29/2005).
http://www3.telus.net/public/bissett1/PMMBogoFilter.html
This is a set of REXX scripts to allow PMMail to use BogoFilter, a Bayesian SPAM filter program.
Source: OS/2 Warp News and Rumors