It would be nice to have the capability to track
messages that have already been classified and added to
the bogofilter database. (Maybe by Message-Id.) So
that bogofilter will not add a given message twice. Or
so that a misclassified message can be properly
classified without explicitly specifying the -Ns or -sN
For example, running bogofilter on a set of folders or
mailboxes that are known to be non-spam. One of the
folders contains a message that was previously
misclassified as spam. Bogofilter automatically runs
-Sn on this message, placing the tokens in the proper
If bogofilter encounters a message id not in its
database, it will classify the message via -s or -n
based on the given option.
If this feature were available, it would be easy to
automate cron-job automation for those applications
where it is not possible to use the -u option. (Say on
a set of folders that have been sorted after a day's
work.) Without having to worry about duplicated or
incorrectly sorted messages.
A recurse folders option would also be handy in
conjunction with this feature!