Mailman 3
Classic GNU mailing list manager modernized with a web interface
Overview
Mailman 3 is the GNU project's flagship mailing list manager, redesigned with a REST API core and a modern web UI called Postorius. It supports mailing lists, digests, archiving via Hyperkitty, moderation queues, and DKIM. It is widely used by open-source projects and academic institutions.
Where it falls short of Mailchimp
- Focused on discussion lists, not marketing newsletters
- No campaign analytics or click tracking by design
- Setup of the three-component stack (core, Postorius, Hyperkitty) is non-trivial
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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