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.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.