Courier Mail Server vs Mail-in-a-Box
Courier Mail Server
courier-mta.org
Mail-in-a-Box
mailinabox.emailSide by side
| Figure | Courier Mail Server | Mail-in-a-Box |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Mail Server Software | 8.5 (#1) | 7.5 (#27) |
| Security | Courier supports STARTTLS and SSL for ESMTP, IMAP, POP3, and webmail; its ESMTP client can require a certificate signed by a trusted root CA. | The control panel supports TOTP-based two-factor authentication, and the security guide says credentials are sent through SSH/TLS rather than in the clear. |
| Support | The site lists an unmoderated courier-users mailing list for questions, bug reports, and comments, plus a separate read-only announcement list. | The project directs users to its discussion forum, GitHub issues, and Slack chat for help. |
Plans
In their own words
Courier Mail Server
Courier Mail Server has no write-up on Specifiction yet; its figures are above.
Mail-in-a-Box
Mail-in-a-Box has no write-up on Specifiction yet; its figures are above.