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Specs

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Aki Tuomi edited this page Oct 8, 2024 · 1 revision

Specifications

IETF groups:

IMAP extensions and server support:
RFC Name Capability name Agorum Core Apache James Archive​opteryx Axigen Citadel Communigate Pro Courier Cyrus DBMail Dovecot GMail IceWarp Isode Kerio Connect MDaemon Microsoft Exchange Oracle UW-IMAP WinGate 7 Zimbra
2087 IMAP4 QUOTA extension QUOTA no 3.0 yes yes no yes yes yes yes v1.0 yes yes yes yes yes no yes no no yes
2177 IMAP4 IDLE command IDLE (L) yes yes yes yes no yes yes v2.0 yes v1.0 yes yes yes yes yes yes v6.3 yes yes yes
2193 IMAP4 Mailbox Referrals MAILBOX-REFERRALS no no no no no no no v2.1 no no no no no no no no no yes no no
2221 IMAP4 Login Referrals LOGIN-REFERRALS no no no no no yes no no no v1.0 no no no no no no v7.0 yes no yes
2342 IMAP4 Namespace NAMESPACE (L) yes yes yes yes yes yes yes v1.6 yes v1.0 yes yes yes yes yes yes yes yes no yes
2971 IMAP4 ID extension ID no no yes no yes yes no v1.6 no v1.2 yes yes no yes no yes v7u4 no yes yes
3348 IMAP4 Child Mailbox Extension CHILDREN yes yes yes yes no yes yes v2.1 yes v1.0 yes yes no no no yes yes yes no yes
3502 IMAP4 MULTIAPPEND Extension MULTIAPPEND yes no yes yes no yes no v2.0 no v1.0 no no yes no no no no yes no yes
3516 IMAP4 Binary Content Extension BINARY (L) no no yes no no yes no v2.2 no v2.2 no no yes no yes no yes yes no yes
3691 IMAP4 UNSELECT command UNSELECT yes yes yes no no yes no v1.6 yes v1.0 yes yes yes yes yes yes v6.3 yes yes yes
4314 IMAP4 Access Control List (ACL) Extension ACL no 3.0 yes yes yes yes yes yes yes v1.2 no v10.0 yes yes yes no v7u5 no no yes
4314 IMAP4 Access Control List (ACL) Extension RIGHTS=* no no no no no no no v2.3 no v1.2 no no yes no no no v7u5 no no yes
4315 IMAP UIDPLUS extension UIDPLUS (L) yes yes yes yes yes yes yes v1.6 no v1.1 yes yes yes yes yes yes yes yes yes yes
4467 IMAP - URLAUTH Extension URLAUTH (L) no no yes no no no no v2.4 no v2.2 no no yes no no no v7.0 no no no
4469 IMAP CATENATE Extension CATENATE (L) no no yes no no no no v2.3 no v2.2 no no yes no no no v7.0 no no yes
4731 IMAP4 Extension to SEARCH Command for Controlling What Kind of Information Is Returned ESEARCH (L) no yes yes no no yes no v2.4 no v1.2 yes no yes no no no v7.0 yes yes yes
4959 IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client Response SASL-IR (L) no yes yes no no yes no v2.2 no v1.1 yes no yes no no yes v7.0 yes yes yes
4978 The IMAP COMPRESS Extension COMPRESS=DEFLATE (L) no no yes no no no no v2.4 no v2.0 yes no yes no yes no no no yes yes
5032 WITHIN Search Extension to the IMAP Protocol WITHIN yes yes yes no no no no v2.4 no v1.2 no no yes no no no v7.0 yes yes yes
5161 The IMAP ENABLE Extension ENABLE (L) no yes yes no no no no yes no v1.2 yes no yes no no no v7.0 no yes yes
5182 IMAP Extension for Referencing the Last SEARCH Result SEARCHRES no yes no no no no no v3.8 no v1.2 no no yes no no no v7u2 no no yes
5255 IMAP Internationalization I18NLEVEL=1 (L) no yes no no no no no no no v1.1 no no no no no no no yes no yes
5255 IMAP Internationalization I18NLEVEL=2 no no no no no no no no no no no no no no no no no no no no
5255 IMAP Internationalization LANGUAGE no no no no no no no no no no no no no no no no yes no no no
5256 IMAP SORT and THREAD Extensions SORT (L) no no yes no no no yes v2.0 yes v1.0 no yes yes yes no no v6.3 yes no yes
5256 IMAP SORT and THREAD Extensions THREAD=ORDEREDSUBJECT no no no no no no yes v2.0 yes v2.1.10 no yes yes no no no v7.0 yes no yes
5256 IMAP SORT and THREAD Extensions THREAD=REFERENCES no no no no no no yes v2.0 no v1.0 no no yes no no no v7.0 yes no no
5257 IMAP - ANNOTATE Extension ANNOTATE-EXPERIMENT-1 no no yes no no no no v2.5 no no no no no no no no v7.0 no no no
5258 IMAP4 - LIST Command Extensions LIST-EXTENDED no no yes no no no no v2.4 no v1.1 no no yes no no no no no no yes
5259 IMAP - CONVERT Extension CONVERT (L) no no no no no no no no no no no no no no no no no no no no
5267 Contexts for IMAP4 ESORT (L) no no no no no no no v3.4 no v1.2 no no no no no no v7.0 no no yes
5267 Contexts for IMAP4 CONTEXT=SEARCH (L) no no no no no no no no no v1.2 no no yes no no no v7.0 no no no
5267 Contexts for IMAP4 CONTEXT=SORT (L) no no no no no no no no no no no no no no no no v7.0 no no no
5464 The IMAP METADATA Extension METADATA no 3.0 no no no no no v2.5 no v2.2.7 no yes no no no no v7.0.5 no no no
5465 The IMAP NOTIFY Extension NOTIFY (L) no no no no no no no v3.10 no v2.2 no no no no no no no no no no
5466 IMAP4 Extension for Named Searches (Filters) FILTERS no no no no no no no no no no no no no no no no no no no no
5524 Extended URLFETCH for Binary and Converted Parts URLAUTH=BINARY no no no no no no no v2.4 no v2.2 no no no no no no no no no no
5530 IMAP Response Codes - no no yes no no no no no no v1.2 FIXME no FIXME no no no v7.0.5 no no no
5550 The Internet Email to Support Diverse Service Environments (Lemonade) Profile URL-PARTIAL (L) no no no no no no no v3.8 no v2.2 no no no no no no yes no no no
5819 IMAP4 Extension for Returning STATUS Information in Extended LIST LIST-STATUS no no no no no no no v2.5 no v1.2 no no no no no no v8.0 no no no
5957 Display-Based Address Sorting for the IMAP4 SORT Extension SORT=DISPLAY no no yes no no no no yes no v1.2 no no no no no no v8.0 no no no
6154 IMAP LIST Extension for Special-Use Mailboxes SPECIAL-USE no no no no no no no v2.5 no v2.1 no no v16.1 no no no v8.0 no no no
6154 IMAP LIST Extension for Special-Use Mailboxes CREATE-SPECIAL-USE no no no no no no no v2.5 no no partial v10.0? no no no no v8.0 no no no
6203 IMAP4 Extension for Fuzzy Search SEARCH=FUZZY no no no no no no no v3.0 no v2.1 no no no no no no no no no no
6785 Support for Internet Message Access Protocol (IMAP) Events in Sieve IMAPSIEVE=* no no no no no no no no no v2.2 (plugin) no no no no no no no no no no
6851 IMAP MOVE Extension MOVE no 3.0 no no no no no v2.5 no v2.2 yes no v16.0 no no yes no no yes no
6855 IMAP Support for UTF-8 UTF8=* no no no no no no no v3.12 no no no no no no no no no no no no
7162 IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC) CONDSTORE (L) no yes yes no no no no v2.3 no v1.2 yes no yes no no no v7.0 no yes yes
7162 IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC) QRESYNC (L) no yes no no no no no v2.4 no v1.2 no no yes no no no v7.0 no no yes
7377 IMAP4 Multimailbox SEARCH Extension MULTISEARCH no no no no no no no v3.8 no no no no no no no no v8.0 no no no
7888 IMAP4 Non-synchronizing Literals LITERAL+ (L) yes yes yes yes no yes no v1.5 no v1.0 yes no yes yes no yes yes yes yes yes
7888 IMAP4 Non-synchronizing Literals LITERAL- no no no no no no no v3.4 no v2.3 no no no no no no no no no no
7889 The IMAP APPENDLIMIT Extension APPENDLIMIT no no no no no no no v3.6 no no no no no no no no no no no no
8437 IMAP UNAUTHENTICATE Extension for Connection Reuse UNAUTHENTICATE no no no no no no no v3.2 no no no no no no no no no no no no
8438 IMAP Extension for STATUS=SIZE STATUS=SIZE no no no no no no no v3.2 no 2.3.10 no no no no no no no no no no
8440 IMAP4 Extension for Returning MYRIGHTS Information in Extended LIST LIST-MYRIGHTS no no no no no no no v3.2 no no no no no no no no no no no no
8457 IMAP "$Important" Keyword and "\Important" Special-Use Attribute - no no no no no no no no no 2.3.10 no no no no no no no no no no
8474 IMAP Extension for Object Identifiers OBJECTID no no no no no no no v3.6 no no no no no no no no no no no no
8508 IMAP REPLACE Extension REPLACE no no no no no no no v3.10 no no no no no no no no no no no no
8514 Internet Message Access Protocol (IMAP) - SAVEDATE Extension SAVEDATE no no no no no no no v3.6 no 2.3.11 no no no no no no no no no no

See also servers' compliancy status.

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