gnus: ifile spam filtering

 
 9.17.6.9 ifile spam filtering
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  -- Variable: spam-use-ifile
 
      Enable this variable if you want ‘spam-split’ to use ‘ifile’, a
      statistical analyzer similar to Bogofilter.
 
  -- Variable: spam-ifile-all-categories
 
      Enable this variable if you want ‘spam-use-ifile’ to give you all
      the ifile categories, not just spam/non-spam.  If you use this,
      make sure you train ifile as described in its documentation.
 
  -- Variable: spam-ifile-spam-category
 
      This is the category of spam messages as far as ifile is concerned.
      The actual string used is irrelevant, but you probably want to
      leave the default value of ‘spam’.
 
  -- Variable: spam-ifile-database
 
      This is the filename for the ifile database.  It is not specified
      by default, so ifile will use its own default database name.
 
    The ifile mail classifier is similar to Bogofilter in intent and
 purpose.  A ham and a spam processor are provided, plus the
 ‘spam-use-ifile’ variable to indicate to spam-split that ifile should be
 used.  The 1.2.1 version of ifile was used to test this functionality.