aka listserve. A way of
managing bulk email lists. You run a listserve management program on your webserver.
People can send it emails to put themselves on or take themselves off the bulk
mailing list. When you don’t have a server, or don’t want people to be
able to put themselves on or off the list, you might want to use my simpler, cheaper
bulk emailer instead which can
run on any computer, not just a dedicated server.