Cyrus IMAP vs Kolab
Cyrus IMAP
cyrusimap.org
Kolab
kolab.orgSide by side
| Figure | Cyrus IMAP | Kolab |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Mail Server Software | 7.9 (#16) | 8.0 (#11) |
| Intended users | The project says Cyrus is used in production at universities and private enterprises. | Kolab describes itself as a solution for companies and families that need to work and communicate together while retaining control over their data. |
| Protocols | Cyrus supports JMAP, IMAP, POP3, CalDAV, and CardDAV. | Kolab supports ActiveSync, IMAP, SMTP, CalDAV and CardDAV for synchronizing email, calendars and tasks. |
| Security | The feature documentation lists Kerberos, LDAP, and SQL authentication, access control, and a sealed system design. | The feature page lists PGP, two-factor authentication, DKIM/DMARC and spam protection among its email security features. |
Plans
In their own words
Cyrus IMAP
Cyrus IMAP has no write-up on Specifiction yet; its figures are above.