1.. _imap-features: 2 3======== 4Features 5======== 6 7The Cyrus IMAP (Internet Message Access Protocol) server provides 8access to personal mail, system-wide bulletin boards, news-feeds, 9calendar and contacts through the IMAP, NNTP, CalDAV and CardDAV 10protocols. The Cyrus IMAP server is a scalable enterprise groupware 11system designed for use from small to large enterprise environments 12using technologies based on well-established Open Standards. 13 14A full Cyrus IMAP implementation allows a seamless mail and bulletin 15board environment to be set up across one or more nodes. It differs 16from other IMAP server implementations in that it is run on *sealed 17nodes*, where users are not normally permitted to log in. The mailbox 18database is stored in parts of the filesystem that are private to the 19Cyrus IMAP system. All user access to mail is through software using 20the IMAP, IMAPS, POP3, POP3S, KPOP, CalDAV and/or CardDAV protocols. 21 22The private mailbox database design gives the Cyrus IMAP server large 23advantages in efficiency, scalability, and administrability. Multiple 24concurrent read/write connections to the same mailbox are permitted. 25The server supports access control lists on mailboxes and storage 26quotas on mailbox hierarchies. 27 28The following documents show the full power of each feature that is 29included with Cyrus IMAP. 30 31Exceptions notwithstanding, most of this documentation does not involve 32the :ref:`imap-rfc-support`. 33 34Security and Authentication 35--------------------------- 36 37.. toctree:: 38 :maxdepth: 1 39 40 features/authentication-kerberos 41 features/authentication-ldap 42 features/authentication-sql 43 features/access-control 44 features/sealed-system 45 46Mailbox Management 47------------------ 48 49.. toctree:: 50 :maxdepth: 1 51 52 features/automatic-creation-of-mailboxes 53 features/namespaces 54 features/virtual-domains 55 features/mailbox-annotations 56 features/mailbox-distribution 57 58Message Management 59------------------ 60 61.. toctree:: 62 :maxdepth: 1 63 64 features/delayed-delete 65 features/delayed-expunge 66 features/message-annotations 67 features/duplicate-message-delivery-suppression 68 features/shared-seen-state 69 features/server-side-filtering 70 features/event-notifications 71 72Calendar and Contact (DAV) Collection Management 73------------------------------------------------ 74 75.. toctree:: 76 :maxdepth: 1 77 78 features/caldav-collections 79 features/dav-components 80 features/dav-collection-mgmt 81 features/carddav 82 83Storage 84------- 85 86.. toctree:: 87 :maxdepth: 1 88 89 features/mail-spool-partitions 90 features/mailbox-metadata-partitions 91 features/archiving 92 features/quota 93 features/single-instance-store 94 95Load Management 96--------------- 97 98.. toctree:: 99 :maxdepth: 1 100 101 features/server-aggregation 102