Teach-SA reads mail in designated maildir folders (spam on
the one hand, ham on the other) and feeds them to
Spamassassin for Bayesian learning and submission to
various spam detection schemes. It is good for
implementing any sort of supervised training in addition to
Spamassassin's unsupervised training (also known as
automatic whitelist) while reducing training-related admin
workload to nearly zero. It fits any setup storing mail as
maildir, but could trivially be modified to work with mbox
based systems. It was originally developed so that users
could report spam by moving it to a specific folder in their
own IMAP mailbox.
