Spam Filters Compared

It is increasingly obvious that in this day and age, if
you don’t have an effective spam filter. email is essentially useless.

Sam Holden, on Freshmeat.net, writes a comprehensive and methodologically
sound comparison of six popular filters relying on alternate techniques
such as Bayesian and heuristic filtering.

Includes Bogfilter, Span Assassin, Quick Span Fileter, Span Probe, SPASTIC
and dbacl

from
Freshmeat.