Majordomo is a program which automates the management of Internet mailing lists. Commands are sent to Majordomo via electronic mail to handle all aspects of list maintenance.
Once a list is set up, virtually all operations can be performed remotely by email, requiring no intervention upon the postmaster of the list site.
majordomo – n: a person who speaks, makes arrangements, or takes charge for another. From latin "major domus" – "master of the house".