I have been getting error messages from a user at a node I am unfamiliar with called COMMUNITY.NET. He keeps subscribing to the list, but all his mail bounces back to me with the message "user unknown". His welcome message, my removal message, etc. Nothing is getting through to him, even when I send a post directly to that address. Yet, when I unsubscribe him, he is deleted each time. What is going on? Anita Cohen-Williams; Reference Services; Hayden Library Arizona State University, Tempe, AZ 85287-1006 PHONE: (602) 965-4579 FAX: (602) 965-9169 INTERNET: [log in to unmask] Owner: HISTARCH