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mailcow: dockerized - 🐮 + 🐋 = 💕

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README.md

# mailcow: dockerized - 🐮 + 🐋 = 💕

[![Translation status](https://translate.mailcow.email/widgets/mailcow-dockerized/-/translation/svg-badge.svg)](https://translate.mailcow.email/engage/mailcow-dockerized/)
[![Twitter URL](https://img.shields.io/twitter/url/https/twitter.com/mailcow_email.svg?style=social&label=Follow%20%40mailcow_email)](https://twitter.com/mailcow_email)
![Mastodon Follow](https://img.shields.io/mastodon/follow/109388212176073348?domain=https%3A%2F%2Fmailcow.social&label=Follow%20%40doncow%40mailcow.social&link=https%3A%2F%2Fmailcow.social%2F%40doncow)

## Want to support mailcow?

Please [consider a support contract with Servercow](https://www.servercow.de/mailcow?lang=en#support) to support further development. _We_ support _you_ while _you_ support _us_. :)

You can also [get a SAL](https://www.servercow.de/mailcow?lang=en#sal) which is a one-time payment with no liabilities or returning fees.

Or just spread the word: moo.

## Many thanks to our GitHub Sponsors ❤️
A big thank you to everyone supporting us on GitHub Sponsors—your contributions mean the world to us! Special thanks to the following amazing supporters:

### 100$/Month Sponsors
  <a href="https://www.colba.net/" target=_blank><img
    src="https://avatars.githubusercontent.com/u/204464723" height="58"
  /></a>
  <a href="https://www.maehdros.com/" target=_blank><img
    src="https://avatars.githubusercontent.com/u/173894712" height="58"
  /></a>
  <a href="https://garske-systems.de/" target=_blank><img
    src="https://garske-systems.de/img/logo_min.png" height="58"
  /></a>

### 50$/Month Sponsors
  <a href="https://github.com/vnukhr" target=_blank><img
    src="https://avatars.githubusercontent.com/u/7805987?s=52&v=4" height="58"
  /></a><a href="https://github.com/humiico" target=_blank><img
    src="https://avatars.githubusercontent.com/u/110134705?s=52&v=4" height="58"
  /></a>

## Info, documentation and support

Please see [the official documentation](https://docs.mailcow.email/) for installation and support instructions. 🐄

🐛 **If you found a critical security issue, please mail us to [info at servercow.de](mailto:info@servercow.de).**

## Cowmunity

[mailcow community](https://community.mailcow.email)

[Telegram mailcow channel](https://telegram.me/mailcow)

[Telegram mailcow Off-Topic channel](https://t.me/mailcowOfftopic)

[Official 𝕏 (Twitter) Account](https://twitter.com/mailcow_email)

[Official Mastodon Account](https://mailcow.social/@doncow)

Telegram desktop clients are available for [multiple platforms](https://desktop.telegram.org). You can search the groups history for keywords.

## Misc

**Important**: mailcow makes use of various open-source software. Please assure you agree with their license before using mailcow.
Any part of mailcow itself is released under **GNU General Public License, Version 3**.

mailcow is a registered word mark of The Infrastructure Company GmbH, Parkstr. 42, 47877 Willich, Germany.

The project is managed and maintained by The Infrastructure Company GmbH.

Originated from @andryyy (André)

Repository info

Default branch: master
Latest version: 2026-09a
Created: 2016-12-10
Last activity: 2026-10-06
License: GPL-3.0
Open issues: 532
Watchers: 197

Topics

acme clamav docker docker-compose dovecot groupware hacktoberfest imap mail mailcow mailserver olefy postfix rspamd servercow smtp sogo

Contributors

andryyy

3.5k contributions

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210 contributions

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148 contributions