Mail-in-a-Box vs Modoboa
| Tagline | Turn any Ubuntu VPS into a complete, self-hosted mail server in one command | Web-based mail hosting platform with modern UI for managing domains and accounts |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Gmail / Google Workspace, Mailchimp, SendGrid | Mailchimp, SendGrid, Gmail / Google Workspace |
| GitHub stars | 15k | 3.5k |
| Language | Shell | Python |
| License | CC0-1.0 | ISC |
| Self-host difficulty | 2/5 Easy | 4/5 Involved |
| Deploy options | Manual | Docker Manual |
| Managed hosting | ||
| Last updated | 25 days ago | yesterday |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Mail-in-a-Box
- Requires a dedicated Ubuntu VPS with a clean IP reputation; shared hosting is not supported
- No built-in bulk mailing or newsletter campaign tools
- Limited horizontal scalability; single-server architecture only
- Webmail (Roundcube) is functional but far less polished than Gmail's UI
Modoboa
- Still depends on external Postfix and Dovecot daemons; not truly all-in-one
- Webmail plugin (Rainloop/SOGo) requires separate configuration
- No bulk mailing or newsletter campaign features
- Documentation can be incomplete for advanced plugin setups
Bottom line
Choose Mail-in-a-Box if you want the lower-effort setup; choose Mail-in-a-Box for the larger community and ecosystem. Modoboa has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Mail-in-a-Box
Turn any Ubuntu VPS into a complete, self-hosted mail server in one command
Modoboa
Web-based mail hosting platform with modern UI for managing domains and accounts