Citadel vs Cyrus IMAP
Citadel
citadel.orgCyrus IMAP
cyrusimap.orgSide by side
| Figure | Citadel | Cyrus IMAP |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Mail Server Software | 8.3 (#4) | 7.9 (#16) |
| Authentication | Citadel can authenticate users through its own database, host-system accounts, or LDAP including Microsoft Active Directory schemas. | Cyrus uses Cyrus SASL and supports multiple authentication options. |
| Purpose | Citadel is an email, collaboration, groupware, and content-management system. | Cyrus IMAP is an email, contacts, and calendar server. |
| Support | Support is provided through an active user and developer community, an online knowledge base, a support forum, and a mailing list. | The project points users to active mailing lists for help. |
Plans
In their own words
Cyrus IMAP
Cyrus IMAP has no write-up on Specifiction yet; its figures are above.