Definition - What does LISTSERV mean?
LISTSERV is a software program that broadcasts an email to all the members of its mailing list. This mailing list software was developed by BITNET Corporation in 1984. However, a revised version of LISTSERV software was developed by Eric Thomas under his organization, L-soft, which added automated list management features. It is now a commercial product distributed by this company.
The LISTSERV word is an acronym for list server.
Techopedia explains LISTSERV
Being one of the first and most popular list servers, the brand name LISTSERV became synonymous with mail servers in general (similar to how Kleenex is a brand name for tissue paper). Sometimes people use the term incorrectly because of this.