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Mailu
This project used to be named Freeposte.io, the name was changed back in October 2016.
Simple yet full-featured mail server as a set of Docker images. The idea behing Mailu is identical to motivations that led to poste.io: providing a simple and maintainable mail server that is painless to manage and does not require more resources than necessary.
People from poste.io did an amazing job at accomplishing this ; any company looking for a serious yet simple mail server with professional support should turn to them.
This project is meant for free software supporters and hackers to reach the same level of functionality and still be able to host a complete mail server at little cost while running only FOSS, applying the KISS principle and being able to fine-tune some details if needed.
Try it out on our demo server.
Features
Main features include:
- Standard email server, IMAP and IMAP+, SMTP and Submission
- Advanced email features, aliases, domain aliases, custom routing
- Web access, multiple Webmails and adminitration interface
- User features, aliases, auto-reply, auto-forward, fetched accounts
- Admin features, global admins, announcements, per-domain delegation, quotas
- Security, enforced TLS, Letsencrypt!, outgoing DKIM, anti-virus scanner
- Antispam, auto-learn, greylisting, DMARC and SPF
- Freedom, all FOSS components, no tracker included
Running a mail server
Mailu runs on top of Docker for easy packaging and upgrades. All you need
is a proper system with Docker and Compose installed, then simply download
the docker-compose.yml and sample .env, tune them to your needs and
fire up the mail server:
docker-compose up -d
For a detailed walktrough, see the Setup Guide.
Contributing
Mailu is free software, open to suggestions and contributions. All components are free software and compatible with the MIT license. All specific configuration files, Dockerfiles and code are placed under the MIT license.
For details, see the Contributor Guide.