When a message is posted to a list which has one or more sub-lists (i.e., a super-list), LISTSERV combines the subscriber lists from the super-list and all its sub-lists, eliminates duplicates, then sends the message to the remaining addresses. See http://www.lsoft.com/manuals/1.8d/owner/owner.html#2.13.11 and http://www.lsoft.com/manuals/1.8d/owner/appendb.html#keySublists for additional information. On Wed, 31 Jul 2002, Pete Weiss <[log in to unmask]> wrote: >Sort of: duplicate messages are sent to the same same subscriber on >multiple lists when sent to multiple lists. Dups are NOT sent when the >same userid@host is part of multiple sub-lists (that's a particular >LISTSERV construct defined withing the list headers and setable by the >listserv-maintainer (not owner). -- Paul Russell Senior System Administrator O&E Messaging Services Team University of Notre Dame