If you are using current LISTSERV technology, there are a couple of different options, besides the standard * FILTER= ALSO,userid@node 1) QUIET SET listname NOPOST FOR [log in to unmask] or 2) QUIET SET listname REVIEW FOR [log in to unmask] The first will outright reject postings, whereas the latter will forward them to the OWNER (or maybe Editor?) for approval. In either case, the P.C. is notified by a message that I believe can be found in the DEFAULT MAILTPL unless that behaviour is overriden by a listname MAILTPL update. Please review your list's FAQ/WELCOME file for netiquette references. Then enforce them even-handedly. -- co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L URL:mailto:[log in to unmask] "Kids: don't e-mail to strangers!"