MajordomoMajordomo is a program similar to listserv that is responsible for automatically managing Internet mailing lists. It was created to minimize the work of the list owner (the person who maintains a mailing list, making sure all the addresses are current, etc.).
The word "majordomo" comes from Latin and means "master of the house".
Majordomo and listserv perform functions that seem very similar. In the past, Majordomo didn't distribute mail as quickly as listserv, but this is no longer true. Listserv is more interconnected than Majordomo, meaning that it's easier for listserv members to connect with other groups and to create redistributions of larger lists within their mailing list. The main difference between the two programs is structural; Majordomo was written in Perl under UNIX-based systems and so it's somewhat simpler than listserv.
You can communicate with Majordomo through using about twelve commands, such as "lists" (to get a catalog with half-line descriptions of the mailing lists that are available from Majordomo) and "end" (which makes Majordomo pay attention only to the text in your message written before "end"--this command can be used to stop signature files from appearing, for example).
The address you send e-mail to in order to subscribe is different from the address that you send e-mail that is to be distributed through the mailing list. When you subscribe to the list, listserv will automatically send you the address to which you mail your subsequent messages.