Hello, all. I'm putting together a superlist that will include several sublists, each of which may contain sublists and/or hundreds of members. Has anyone come across practical limits to the ultimate number of recipients that should be on a list? Furthermore, have you found any ways that would improve performance (or, at least not cause the server performance to degrade or, worse yet, cause the server to crash)? Thanks in advance for your information. Listserv Admin Newbie... John Mangione [log in to unmask]