Questions about Spam filtering in YAM...

• What's the purpose of the 'Bounce' option in YAM and can I use it to e.g. bounce SPAM mail back?
  (2657 views)
• How to train YAM's spam filter properly?
  (2111 views)
• If I search for "[SPAM]" in a filter, mails not containing this string will get hit by the filter as well, why?
  (2977 views)