Free code mailing list software

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There are a number of free code packages for running mailing list servers. This list was sourced from a page in the Permageeks resources, that I curated on the wiki of the Aotearoa Permaculture Network. That page has been retired, and the list is now curated here. --Strypey (talk) 11:56, 14 October 2019 (UTC)

Discussion Lists and Newsletter Lists

  • Schleuder (license: GPLv3, programming language: Ruby-on-Rails). Encrypted mailing lists. As of 2019, you have to trust the host running your Schleuder server, because they have the power to store and decrypt emails sent through its mailing lists. Developed by an anonymous group who have their code repo on a GitLab instance loosely associated with, and an IRC channel on
    • May not have publicly-visible index and list home pages because of the privacy orientated nature of the project. Certainly won't have list archive pages.

Web Forum Software That Includes Mailing List Features

  • Discourse (license: GPLv2, programming language: Ruby on Rails): primarily a web forum platform, but forums can be interacted with via email in a similar way to an email discussion list. Developed by an VC-funded company called the Civilized Discourse Construction Kit Inc, that is incorporated in the USA.
  • Loomio (license: AGPLv3, programing language: Ruby on Rails, Angular): primarily a group decision-making platform, but groups and subgroups can be interacted with via email in a similar way to an email discussion list. Developed by an Aotearoa (NZ) based worker-owned coop that is a member of the Enspiral network.

Newsletter Lists Only

  • CiviCRM (license: GNU AGPLv3, programming language: PHP) note: CRM, does newsletter lists, but not discussion lists
  • DadaMail (license: GNU GPLv2+, programming language: Perl) note: mainly a newsletter mail-out server. Can support discussion lists using a Bridge plug-in
  • Mail-for-Good (license: 3-clause BSD, programming language: ) note: targeted at not-for-profits running lobbying campaigns or doing large scale organising, using "AWS Simple Email Service to send bulk emails at $0.10 per 1000 emails."
  • Mailtrain (license: GPLv3, programming language: Javascript/ NodeJS): "self-hosted newsletter app built on top of Nodemailer"
  • Mautic (license: GNU GPLv3+, programming language: PHP/ Javascript) note: aims to clone MailChimp type functions
  • Postal (license: "MIT", programming language: Ruby) note: intended as a free code replacement for proprietary mail delivery platforms like Sendgrid, Mailgun or Postmark

See also: