On 10/10/2006 13:32, Steve Eckard wrote: > One of our listowners is setting up an announce only list to > send to a specific group of people in case of an emergency > situation at our University. He wants to know if there is a > way to set up the list that only a listowner/administrator > could add or delete people from this list (member on the list > could not unsubscribe). Can this be accomplished? Thanks. This question comes up several times a year. This can be done, however, it requires the implementation of a list exit. The exit must be installed by the site administrator. Individual lists can then be configured to use the exit. See Chapter 5 of the LISTSERV Developer's Guide for a detailed discussion of list exits I have a list exit which will reject signoff requests, and another which will reject both signoff requests and subscription option change requests, so a subscriber can neither leave the list nor set his/her subscription to NOMAIL. These exits are in production on LISTSERV 1.8e on Solaris 8. I am willing to share the code, but I cannot provide any assistance for implementation, or for porting the code to other versions and/or platforms. All the standard disclaimers and caveats apply. -- Paul Russell, Senior Systems Administrator OIT Messaging Services Team University of Notre Dame [log in to unmask]