IMAP, Interactive Mail Access Protocol （1）
http://www.networksorcery.com/enp/protocol/imap.htm Description: Protocol suite: TCP/IP. Protocol type: Application layer email protocol. Ports: 143 (TCP) IMAP2, IMAP4, IMAP 4rev1. 220 (TCP) IMAP3. URI: imap: MIME subtype: SNMP MIBs: Worki
http://www.networksorcery.com/enp/protocol/imap.htm
Description:
| Protocol suite: | TCP/IP. |
| Protocol type: | Application layer email protocol. |
| Ports: | 143 (TCP) IMAP2, IMAP4, IMAP 4rev1. 220 (TCP) IMAP3. |
| URI: | imap: |
| MIME subtype: | |
| SNMP MIBs: | |
| Working groups: | imap, Internet Message Access Protocol. imapext, Internet Message Access Protocol Extension. morg, Message ORGanization. |
| Links: | IANA: IMAP4 capabilities. wiki: IMAP. |
IMAP2:
IMAP3:
IMAP4:
IMAP4rev1:
This variant is designed to be upwards compatible from the IMAP2 and unpublished IMAP2bis protocols. It is largely compatible with the IMAP4 protocol.
| MAC header | IP header | TCP header | IMAP message |
Commands:
| Command | References |
|---|---|
| APPEND | RFC 3501, RFC 3502, RFC 4466, RFC 4469 |
| AUTHENTICATE | RFC 3501 |
| CAPABILITY | RFC 3501 |
| CHECK | RFC 3501 |
| CLOSE | RFC 3501 |
| COMPARATOR | RFC 5255 |
| COMPRESS | RFC 4978 |
| CONVERSIONS | RFC 5259 |
| COPY | RFC 3501 |
| CREATE | RFC 3501, RFC 4466 |
| DELETE | RFC 3501 |
| DELETEACL | RFC 4314 |
| EXAMINE | RFC 3501, RFC 4466 |
| EXPUNGE | RFC 3501 |
| FETCH | RFC 3501, RFC 4466 |
| GETACL | RFC 4314 |
| GETQUOTA | RFC 2087 |
| GETQUOTAROOT | RFC 2087 |
| LIST | RFC 3501 |
| LISTRIGHTS | RFC 4314 |
| LOGIN | RFC 3501 |
| LOGOUT | RFC 3501 |
| LSUB | RFC 3501 |
| MYRIGHTS | RFC 4314 |
| NOOP | RFC 3501 |
| RENAME | RFC 3501, RFC 4466 |
| SEARCH | RFC 3501, RFC 5032 |
| SELECT | RFC 3501, RFC 4466 |
| SETACL | RFC 4314 |
| SETQUOTA | RFC 2087 |
| SORT | RFC 5256 |
| STARTTLS | RFC 3501 |
| STATUS | RFC 3501 |
| STORE | RFC 3501, RFC 4466 |
| SUBSCRIBE | RFC 3501 |
| THREAD | RFC 5256 |
| UID | RFC 3501, RFC 4315, RFC 4466 |
| UNSELECT | RFC 3691 |
| UNSUBSCRIBE | RFC 3501 |
| X |
RFC 3501 |
Status responses:
Status responses MAY include an OPTIONAL response code. A response code consists of data inside square brackets in the form of an atom, possibly followed by a space and arguments. The response code contains additional information or status codes for client software beyond the OK/NO/BAD condition, and are defined when there is a specific action that a client can take based upon the additional information.
| Response | Reference |
|---|---|
| BAD | RFC 3501 |
| BYE | RFC 3501 |
| NO | RFC 3501 |
| OK | RFC 3501 |
| PREAUTH | RFC 3501 |
IMAP4 capabilities:
| Capability | References |
|---|---|
| ACL | RFC 4314 |
| ANNOTATE-EXPERIMENT-1 | RFC 5257 |
| BINARY | RFC 3516 |
| CATENATE | RFC 4469 |
| CHILDREN | RFC 3348 |
| COMPRESS=DEFLATE | RFC 4978 |
| CONDSTORE | RFC 4551 |
| CONTEXT=SEARCH | RFC 5267 |
| CONTEXT=SORT | RFC 5267 |
| CONVERT | RFC 5259 |
| ENABLE | RFC 5161 |
| ESEARCH | RFC 4466, RFC 4731 |
| ESORT | RFC 5267 |
| FILTERS | RFC 5466 |
| I18NLEVEL=1 | RFC 5255 |
| I18NLEVEL=2 | RFC 5255 |
| ID | RFC 2971 |
| IDLE | RFC 2177 |
| LANGUAGE | RFC 5255 |
| LITERAL+ | RFC 2088 |
| LOGIN-REFERRALS | RFC 2221 |
| LOGINDISABLED | RFC 2595, RFC 3501 |
| MAILBOX-REFERRALS | RFC 2193 |
| MULTIAPPEND | RFC 3502 |
| NAMESPACE | RFC 2342 |
| NOTIFY | RFC 5465 |
| QRESYNC | RFC 5162 |
| QUOTA | RFC 2087 |
| RIGHTS= | RFC 4314 |
| SASL-IR | RFC 4959 |
| SEARCHRES | RFC 5182 |
| SORT | RFC 5256 |
| STARTTLS | RFC 2595, RFC 3501 |
| THREAD | RFC 5256 |
| UIDPLUS | RFC 2359 |
| UNSELECT | RFC 3691 |
| URLAUTH | RFC 4467 |
| WITHIN | RFC 5032 |