Mailu
Simple yet full-featured mail server as a set of Docker images.
- GitHub stars
- 7,551
- License
- MIT
- Latest release
- 2024.06.62
12 October 2026 - Last commit
- 12 October 2026
- Runs on
- Docker, Python
Commits per month, last 12 months
178 commits
Replaces
Paid products Mailu can stand in for.
How to self-host Mailu
Mailu runs on Docker and Python. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.
- Get a server: a home server, a VPS, or a managed app host.
- Install it the way the project's docs describe, usually with Docker Compose.
- Put it behind HTTPS and set up backups before you add real data.
- Update it regularly. Watch the project's releases.
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Questions
Is Mailu free?
Yes. Mailu is open source under the MIT license, so you can use it without paying for a license. You pay only for the server it runs on.
Can I self-host Mailu?
Yes. Mailu runs on Docker and Python. Follow the install guide in the project's documentation, or use a host that installs it for you.
What does Mailu replace?
People use Mailu instead of Fastmail, Gmail or Outlook.com.
Is Mailu still maintained?
The last change to Mailu's code was on 12 October 2026, with 178 commits in the last 12 months.
Topics
App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.