Hi a list user offered an fix to help sort out bounce messages.
in my mail logs i seeJun 16 10:23:54 proteus2 spamd[14855]: config: not parsing, 'allow_user_rules' is 0: meta BOUNCED_SPAM (ANY_BOUNCE_MESSAGE && BAYES_99)
meta BOUNCED_SPAM (ANY_BOUNCE_MESSAGE && BAYES_99) is in user_prefs for the user.
full rule meta BOUNCED_SPAM (ANY_BOUNCE_MESSAGE && BAYES_99) score BOUNCED_SPAM 4.0 allow_user_rules 1 is in local.cf running SA3.2.4 on FC3Mark