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$NetBSD: $

Before actually using it, it is necessary to prepare a word database.

1.The word contained in clean mail is counted.
 % bsfilter --add-clean ~/Maildir/cur/*
   or
 % cd ~/Maildir/cur/ ; ls | xargs bsfilter -c

2.The word in spam is counted.
 % bsfilter --add-spam ~/Maildir/.spam/cur/*
   or
 % cd ~/Maildir/.spam/cur/ ; ls | xargs bsfilter -s

3.A database is updated for every word.
 % bsfilter -u
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