Maddy Mail Server
Maddy Mail Server is an open-source, self-hosted app in the Email Servers category, licensed GPL-3.0 and written mainly in Go. It is a self-hosted alternative to Twilio SendGrid and Mailgun. It has 6,115 GitHub stars and its last commit was on Oct 20, 2026 (data as of Oct 26, 2026).
GitHub stats
- GitHub stars
- 6,115
- Forks
- 336
- Open issues
- 125
- Commits, last 12 months
- 90
- Last commit
- Oct 20, 2026
- Latest release
- v0.9.6Oct 3, 2026
- Created
- Nov 7, 2016
- License
- GPL-3.0Open source
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Oct 20, 2026, 90 commits in 12 months.
- Regular releases8 releases in 12 months
- Welcomes contributors19 open good-first-issue or help-wanted issues and a contributing guide
- Security policyPublishes a security policy on GitHub
| Last commit | Oct 20, 2026 |
|---|---|
| Commits, last 12 months | 90 |
| Latest release | v0.9.6 (Oct 3, 2026) |
| Releases, last 12 months | 8 |
| Releases, all time | 34 |
| Open issues | 125 |
| Open pull requests | 13 |
| Good first issues | 16 |
| Contributing guide | Yes |
| Security policy | Yes |
| Created | Nov 7, 2016 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
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.
Description adapted from awesome-selfhosted (CC BY-SA 3.0). Source code: github.com/foxcpp/maddy.
Topics
- imap
- smtp
- dkim
- dmarc
- spf
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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 self-hosted 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 20, 2026 with 90 commits in the past twelve months. The latest release is v0.9.6, published Oct 3, 2026. It had 125 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.