|Stable release||1.94.5 / 19 January 2000|
|Written in||Perl (< 5.10)|
Majordomo is a mailing list manager (MLM) developed by Brent Chapman of Great Circle Associates. It is written in Perl and works in conjunction with sendmail on UNIX and related operating systems. The name majordomo is derived from the Latin "major domus" meaning "master of the house"; in English, the word is used to refer to a large household's chief servant.
The current version of Majordomo is 1.94.5, released Jan. 19, 2000.
The official website warns that it will not work with Perl versions 5.001 and 5.005_01 specifically. It recommends to use Perl 4.036 or the latest version available. Support for Perl 4.036 may not be kept for the future.
Majordomo has been in widespread use since 1992, predating the popularity of the web browser, in an era when many people had access to email but didn't have WWW access. As a result, tasks such as subscribing and unsubscribing are handled by sending mail messages, a process that may seem cumbersome today.
There are front-ends, such as MajorCool, to provide a web interface. Many mailing lists still use Majordomo. There is work being done to completely rewrite Majordomo with a focus on keeping the familiar email interface while greatly improving the web interface and other features. This coding effort is referred to as Majordomo 2 and is currently being used by the OpenBSD project among others.
Before Majordomo, mailing lists were maintained manually, with a list owner adding and removing participants by editing a text file. Most, however, moved to commercial mailing list hosting services, often with a stipend of $100 or more paid to the list owner by the hosting service in exchange for the transfer. Most of the hosting providers were subsequently bought out by Yahoo!, and merged into its Yahoo! Groups service.
Majordomo is community-supported semi-free software, however, the license says "No part of Majordomo may be incorporated into any program or other product that is sold, or for which any revenue is received without written permission of Great Circle Associates". There are a few exceptions listed in the license to this: "You may install Majordomo at your site and run mailing lists for other (sic) using it, and charge for that service. You may install Majordomo at other sites, and charge for your time to install, configure, customize, and manage it. You may charge for enhancements you've made to the Majordomo software, subject to the distribution restrictions listed [in the license]. You may not charge for the Majordomo software itself".
See also 
- "What is Majordomo?". Majordomo Frequently Asked Questions (FAQ). Greater Circle. Retrieved 20 February 2013. "majordomo - n: a person who speaks, makes arrangements, or takes charge for another. From latin "major domus" - "master of the house"."
- "majordomo". Wiktionary. Wikimedia. Retrieved 20 February 2013.
- Wilson, Chan. "Majordomo 1.94.5 released -- security and bugfix release". Majordomo-Announce. Great Circle. Retrieved 19 February 2013.
- "What is Majordomo?". Majordomo Frequently Asked Questions (FAQ). Great Circle. Retrieved 19 February 2013. "Majordomo is written in Perl. It will work with Perl 4.036 or Perl 5.002 or greater"
- "Mailing Lists -- Majordomo History". Living Internet. Retrieved 20 February 2013. "The first version took him [Brent Chapman] about 20 hours, consisted of about 600 lines of code in the Perl language, and was deployed in June, 1992."
- "Majordomo". Linux Links - The Linux Portal Site. Retrieved 20 February 2013. "It is written in Perl and has a long history, coming into popular use since 1992"
- Houle, Bill. "MajorCool: A Web Interface To Majordomo". SILICONexus. Retrieved 19 February 2013.
- "Majordomo 2". Steven Pritchard. Retrieved 19 February 2013.
- "Majordomo License Agreement". Great Circle Associates. p. 2.b. Retrieved 19 February 2013. "No part of Majordomo may be incorporated into any program or other product that is sold, or for which any revenue is received without written permission of Great Circle Associates, with the following exceptions"