There are 3 open-source alternatives to Modoboa in this directory. The most popular is Docker-mailserver with 18.1k GitHub stars, followed by Mailcow-dockerized(12.5k stars). All are open source, free to use, and many can be self-hosted.
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Docker-mailserver A production-ready, fullstack mail server solution featuring SMTP, IMAP, LDAP, Antispam, and Antivirus functionalities, all running seamlessly inside a container. Designed for simplicity and ease of setup with robust security and reliability. | 18.1k | Shell | MIT License |
| 2 | Mailcow-dockerized mailcow-dockerized is a modern, user-friendly, open source mail server suite based on Docker, offering a complete mail solution with advanced security, convenient web interfaces, and easy deployment. | 12.5k | JavaScript | GNU General Public License v3.0 |
| 3 | Mailu Mailu is a full-featured, self-hosted email server solution that runs as Docker images, providing an insular email distribution with modern features and security controls. | 7.0k | Python | Other |
A production-ready, fullstack mail server solution featuring SMTP, IMAP, LDAP, Antispam, and Antivirus functionalities, all running seamlessly inside a container. Designed for simplicity and ease of setup with robust security and reliability.
mailcow-dockerized is a modern, user-friendly, open source mail server suite based on Docker, offering a complete mail solution with advanced security, convenient web interfaces, and easy deployment.
Mailu is a full-featured, self-hosted email server solution that runs as Docker images, providing an insular email distribution with modern features and security controls.
The top three are Docker-mailserver(18.1k stars), Mailcow-dockerized(12.5k stars), Mailu(7.0k stars). All are open source and free to use.
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
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