Majordomo

Like listserv, Majordomo (from Latin: "master of the house") is a small program that automatically redistributes e-mail to names on a mailing list. Users can subscribe to a mailing list by sending an e-mail note to a mailing list they learn about; Majordomo will automatically add the name and distribute future e-mail postings to every subscriber. (Requests to subscribe and unsubscribe are sent to a special address so that other subscribers do not see these requests.)

Majordomo is written in the Perl language. Although it originated in the Unix culture, Majordomo can be run on any operating system platform with a Perl interpreter.