A listmember who has been served out continues to receive mail but cannot post. Generally this is done by setting a person NOPOST, and is one way of shutting up an obnoxious voice without filtering. I presume that Listserv has an automatic feature which "serves out" addresses with large numbers of errors. Ony the listowner can remove the barrier by the command: SET YOURLIST POST FOR [log in to unmask] Ingrid Shafer [log in to unmask] & [log in to unmask] http://astro.temple.edu/arcc