Lurker - An open-source mailing list archiver. It includes an integrated search engine and supports MIME, GPG, and chronological threading. Designed for large archives. Mailman - Software to manage email discussion lists. It gives each mailing list a web page, and gives users options such as subscribe and unsubscribe over the web [Unix] ListSTAR - Discussion lists, newsletters, email on demand [Mac] Indexsoft Intuitive Mailer - A mailing list manager [Perl] EZMLM - High-speed mailing list manager for qmail. Lets users set up their own mailing lists within qmail's address hierarchy. LISTSERV - Manage and control e-mail lists, newsletters, discussion groups and direct e-mail marketing campaigns. Free version available for non-profit organizations. Multiple platforms. MailList Controller - Designed to send out personalized messages, manage multiple mailing lists, newsletters, campaigns, e-zines, announcements, support and group mails.