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