I have a group who wants to create lists to which only people (including non-subscribers) on campus (in the UFL.EDU domain) can post. I told them that Send=Public is the standard way, but I recommended against it because it opens the lists to spamming. Likewise, they don't want to turn on confirmation because it will confuse the M.D.s and secretaries too much. I looked at "Filter=" -- it supports wildcards (*@*.UFL.EDU), but the values indicate who _can't_ post, but I want to indicate just those who _can_ post. I also looked at "Service=", but the doc says it only applies to subscription requests and not posts (plus no wildcards). Anyone got any ideas? TIA, -david David Nessl -- Coordinator, Computer Systems (systems programmer) E-mail: [log in to unmask] | Northeast Regional Data Center Voice: 352-392-2061 | 112 SSRB, University of Florida FAX: 352-392-9440 | Gainesville, FL 32611 USA