Mailpit
A self-hosted Communication & Social app you can run on your own server.
Mailpit gives you a self-hosted communication platform: one you deploy yourself, on a home server, NAS or VPS. Because it runs on infrastructure you control, your data stays with you and there is no subscription required to keep using it.
Its public repository on GitHub currently shows 10.4K stars, a useful signal of community interest. Repository activity was last recorded on Sep 6, 2026, and the project is classed as actively maintained in our snapshot.
Before you switch
Communication tools only work if your people can reach them. Check guest access, mobile apps, and federation or bridging support before migrating a community. Self-hosting gives you the data and the rules, but someone has to own updates and moderation.
Like every project listed on SelfHosted, Mailpit is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.