=head1 Envelope based action # Descriptions: enable envelope based loop check or not ? # History: # Value: YES_OR_NO # Examples: use_incoming_mail_envelope_loop_check = yes # Descriptions: envelope based loop check rules # History: # Value: MIX ( # check_envelope_sender # ) # Examples: check_envelope_sender incoming_mail_envelope_loop_check_rules = check_envelope_sender