iRedMail vs Mail-in-a-Box
| Tagline | Full-featured open-source mail server built on Postfix and Dovecot, installable in minutes | Turn any Ubuntu VPS into a complete, self-hosted mail server in one command |
| Category | Email & Newsletters | Email & Newsletters |
| Replaces | Gmail / Google Workspace, SendGrid, Mailchimp | Gmail / Google Workspace, Mailchimp, SendGrid |
| GitHub stars | 1.8k | 15k |
| Language | Shell | Shell |
| License | GPL-3.0 | CC0-1.0 |
| Self-host difficulty | 3/5 Moderate | 2/5 Easy |
| Deploy options | Manual | Manual |
| Managed hosting | ||
| Last updated | 24 days ago | 25 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
iRedMail
- Full admin panel (iRedAdmin-Pro) requires a paid license; free admin panel is limited
- Designed for dedicated servers only; Docker or container-based installs are unofficial
- No built-in newsletter or bulk email campaign features
- Upgrades between major versions require careful manual steps
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
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. iRedMail has seen more recent development. Open each guide below for deploy steps and the full feature gap.
iRedMail
Full-featured open-source mail server built on Postfix and Dovecot, installable in minutes
Mail-in-a-Box
Turn any Ubuntu VPS into a complete, self-hosted mail server in one command