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.
- Email Servers
- Go
- GPL-3.0
- Actively maintained
GitHub stats
- GitHub stars
- 6,099
- Forks
- 329
- Open issues
- 124
- Commits, last 12 months
- 74
- Last commit
- Oct 3, 2026
- Latest release
- v0.9.6Oct 3, 2026
- Created
- Nov 7, 2016
Data from the GitHub API, refreshed daily.
About 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. Maddy Mail Server is open source under the GPL-3.0 license and written mainly in Go, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 6,099 stars and 329 forks on GitHub, with 74 commits over the last year. It installs natively rather than through an official Docker image, so plan for a short manual setup.
Topics
- imap
- smtp
- dkim
- dmarc
- spf
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What is Maddy Mail Server?
Maddy Mail Server is a free, open-source app you can host on your own server, listed in our Email Servers category. All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon. The source code lives at github.com/foxcpp/maddy, where it has 6,099 stars.
Is Maddy Mail Server free and open source?
Yes. Maddy Mail Server is open-source software released under the GPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Maddy Mail Server with Docker?
Maddy Mail Server does not list an official Docker image. It installs natively (Go), so follow the install steps in its README or look for a community-maintained container.
What are the best alternatives to Maddy Mail Server?
Popular open-source alternatives to Maddy Mail Server include docker-mailserver, Postal and Mail-in-a-Box. Maddy Mail Server itself is a self-hosted alternative to Twilio SendGrid and Mailgun.
Is Maddy Mail Server actively maintained?
The most recent commit to Maddy Mail Server was on Oct 3, 2026 with 74 commits in the past twelve months. The latest release is v0.9.6, published Oct 3, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.