Maddy Mail Server

All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.

GitHub stars
6,108
License
GPL-3.0
Latest release
v0.9.6
3 October 2026
Last commit
3 October 2026
Runs on
Go

Commits per month, last 12 months

87 commits

Replaces

Paid products Maddy Mail Server can stand in for.

How to self-host Maddy Mail Server

Maddy Mail Server runs on Go. 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.

  1. Get a server: a home server, a VPS, or a managed app host.
  2. Install it the way the project's docs describe, usually with Docker Compose.
  3. Put it behind HTTPS and set up backups before you add real data.
  4. Update it regularly. Watch the project's releases.

New to self-hosting? Start with the beginner's guide.

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Questions

Is Maddy Mail Server free?

Yes. Maddy Mail Server is open source under the GPL-3.0 license, so you can use it without paying for a license. You pay only for the server it runs on.

Can I self-host Maddy Mail Server?

Yes. Maddy Mail Server runs on Go. Follow the install guide in the project's documentation, or use a host that installs it for you.

What does Maddy Mail Server replace?

People use Maddy Mail Server instead of Gmail.

Is Maddy Mail Server still maintained?

The last change to Maddy Mail Server's code was on 3 October 2026, with 87 commits in the last 12 months.

Topics

Communication - Email - Complete Solutions

App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.