Version 0.4 / Fri Jun 27 2003
  - fixed a bug where a user couldn't leave on filtering if they weren't
    doing a forward or vacation response
  - added more comments to config.php, converted the examples from
    a qmail setup to postfix/sendmail
  - tried to avoid creating some unnecessary PHP log warnings
Version 0.3 / Fri Apr 11 2003
  - tried to take care of all shortcomings when register_globals = Off
Version 0.2 / Wed Apr 09 2003
  - initial public release
