Well, you can certainly "shoot first" (delete+filter) and "ask questions later." There are intermediate steps too, depending on the exact nature of the bounce back to the list: is the bounce really coming FROM the subscriber's e-mail address? if not, maybe your list definitions are setup to encourage SPAM and other non-subscriber distributions. The user could be inhibited by "simple" list-owner command so that their contributions are either bounced or sent to the moderator (SET listname NOPOST | REVIEW FOR luser@node). Reducing the frequency is sometimes effective (SET DIGEST | INDEX). List Policies are as diverse as the list-owners. /Pete Weiss