# Maddy Mail Server

> Maddy Mail Server is a free, open-source app you can self-host in the 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. It has 6,099 GitHub stars, is released under the GPL-3.0 license. It is a self-hosted alternative to Twilio SendGrid and Mailgun.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/foxcpp/maddy |
| Website | https://maddy.email/ |
| GitHub stars | 6,099 |
| Forks | 329 |
| Open issues | 124 |
| License | GPL-3.0 |
| License type | Open source |
| Language | Go |
| Docker image | No |
| Platforms | Go |
| Categories | Email Servers |
| Commits, last 12 months | 74 |
| Last commit | Oct 3, 2026 |
| Latest release | v0.9.6 (Oct 3, 2026) |
| Created | Nov 7, 2016 |
| Maintenance | Actively maintained |
| Archived | No |

Topics: imap, smtp, mail, dkim, dmarc, spf, email

## Install

Maddy Mail Server installs natively; follow the README at https://github.com/foxcpp/maddy.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

## Maddy Mail Server replaces

- [Twilio SendGrid alternatives](https://appsgit.com/alternatives/sendgrid): A transactional and marketing email delivery API.
- [Mailgun alternatives](https://appsgit.com/alternatives/mailgun): An email API for sending, receiving and tracking transactional mail.

## Similar apps in Email Servers

- [docker-mailserver](https://appsgit.com/apps/docker-mailserver): Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database. (18,903 stars, MIT, Shell, Docker)
- [Postal](https://appsgit.com/apps/postal): Complete and fully featured mail server for use by websites & web servers. (16,854 stars, MIT, Ruby, Docker)
- [Mail-in-a-Box](https://appsgit.com/apps/mail-in-a-box): Turns any Ubuntu server into a fully functional mail server with one command. (15,435 stars, CC0-1.0, Python)
- [Stalwart Mail Server](https://appsgit.com/apps/stalwart-mail-server): All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features. (14,971 stars, AGPL-3.0, Rust, Docker)
- [Mailcow](https://appsgit.com/apps/mailcow): Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration. (13,563 stars, GPL-3.0, JavaScript, Docker)
- [Mailu](https://appsgit.com/apps/mailu): Simple yet full-featured mail server as a set of Docker images. (7,537 stars, MIT, Python, Docker)
- [Roundcube](https://appsgit.com/apps/roundcube): Browser-based IMAP client with an application-like user interface. (7,207 stars, GPL-3.0, PHP)
- [SimpleLogin](https://appsgit.com/apps/simplelogin): Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps. (7,037 stars, AGPL-3.0, Python, Docker)

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