There are many alternatives to Mailman as a self-hosted solution if you are looking for a replacement. The best open source Self-Hosted alternative is Listmonk. If that doesn't suit you, our users have ranked more than 100 alternatives to Mailman and ten of them are open source and available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting open source Self-Hosted alternatives to Mailman are mlmmj, Sympa, phpList and Keila.
Send e-mail campaigns, newsletters, manage mailing lists, all from a powerful self-hosted dashboard released as a single binary. High performance and feature packed open source app written in Golang, and backed by Postgres.
Sympa is an open source (GNU GPL) mailing list management (MLM) software. Its name is an acronym for Systeme de Multi-Postage Automatique (i.e. Automatic Mailing System), and also means "nice" in French.
phpList is newsletter and email marketing software, it helps you send email campaigns, newsletters, announcements and notifications.
Keila is an Open Source alternative to newsletter tools like Mailchimp or Brevo. With Keila you can easily send out newsletter campaigns and create sign-up forms. Grow your contact lists, use custom data, and send your campaigns with Keila.
Email lists, with an integrated web interface, and control. Administering large mailing list sites
Are you sick of the limitations of open source MLMs, but not ready to give up control to a web-delivered service? Give your users a web interface
Let your users read and post mess.
Gutuma was born out of the need for free mailing list / newsletter software that is geared, not towards mass-marketing companies and spammers, but web developers who need a system that can be easily integrated with an existing web site.
Allows you to run a free Listserv or email group right from your WordPress dashboard. Its the best two-way communication group email plugin in wordpress where an email sent to the main group email gets forwarded to the all group members.
Schleuder is a gpg-enabled mailing list manager with resending-capabilities. Subscribers can communicate encrypted (and pseudonymously) among themselves, receive emails from non-subscribers and send emails to non-subscribers via the list.
Gray Duck Mail is an alternative to email discussion group software such as Mailman and Sympa designed to be easy to set up and easy to manage. Gray Duck Mail monitors a remote mail server for messages and processes them by relaying the message to all list members.
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PHPList is mainly for sending out email newsletters, it's not a mailinglist with an archive.