List of collaborative software Comparison Comparison

| Name_ | Mail_transfer_agent | Mail_storage_type | IMAP_server | IMAP_shared | Calendar_format | Calendar_shared | IM_server | WebDAV | Web_UI | Contacts_shared | Files_shared | Web_admin_UI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Axigen | SMTP proprietary RFC compliant | proprietary indexed storage | proprietary RFC compliant | Yes | iCal | available from Microsoft Outlook & Webmail | No | No | Yes | Yes | No | Yes |
| Bynari | SMTP Postfix | IMAP | Cyrus IMAP | Yes | iCal | iCal | Jabber | Yes | Yes | Yes | Yes | Yes |
| Citadel/UX | Custom | Berkeley DB | Custom | Yes | iCal | Yes | Yes | GroupDAV and WebCal support | Yes | Yes | various methods | Yes |
| Collaber | No | No | No | No | No | Yes | Yes | No | No | Yes | Yes | No |
| Collabtive | Sendmail , SMTP | IMAP server dependent, Database | Any IMAP server | Unknown | iCal | Web interface | Yes | No | Yes | Yes | Yes | Yes |