Minorfish (formerly Minordomo) is a minimalistic list manager. It is a full-featured replacement for majordomo; however, it is much simpler to configure and adminster. It includes mail, Web, and commandline interfaces.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
A few small bugs have been fixed, and many new features have been added, including message/subscription moderation, digesting, better MIME handling, modularity, a backend API, and lots of others.
Bugs with attachments, custom Subject: and Reply-To:, a portability problem, and incorrect Return-Path have been fixed, and some general code cleanup has been done. Two new mailing list manager commands have been implemented.