Listserv is a user name on some computers on BITNET/EARN which processes electronic mail requests for addition to or deletion from mailing lists. Examples are email@example.com, firstname.lastname@example.org.
Some listservs provide other facilities such as retrieving files from archives and database search. Full details of available services can usually be obtained by sending a message with the word HELP in the subject and body to the listserv address.
Eric Thomas, has recently formed an international corporation, L-Soft, and has ported Listserv to a number of other platforms including Unix. Listserv has simultaneously been enhanced to use both the Internet and BITNET.