Mail-in-a-Box is a one-click mail server appliance created in 2013.
Created by Joshua Tauberer to simplify mail server deployment.
- Opinionated: One “right way”
- Automated: Minimal configuration
- Appliance: Black box approach
- Simple: Easy to use
2013-2016:
- First release
- Let’s Encrypt integration (early adopter)
- Automatic DNSSEC
2017-2020:
- Nextcloud integration
- z-push ActiveSync
- Ubuntu 20.04 support
2021-2026:
- Ubuntu 22.04 support
- Enhanced security
- v74 (January 2026)
| Year |
Ubuntu |
Version |
| 2013 |
12.04 |
0.1 |
| 2016 |
16.04 |
0.21 |
| 2020 |
20.04 |
0.40 |
| 2022 |
22.04 |
0.50 |
| 2026 |
22.04 |
v74 |
- Founder: Joshua Tauberer (@JoshData)
- Contributors: 100+ GitHub contributors
- Forum: https://discourse.mailinabox.email/
- Website: https://mailinabox.email/
- GitHub: https://github.com/mail-in-a-box/mailinabox
- Documentation: https://mailinabox.email/docs.html
Any questions?
Feel free to contact us. Find all contact information on our contact page.