INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev2
draft-ietf-extra-imap4rev2-02

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01
• 02

Network Working Group                                   A. Melnikov, Ed.
Internet-Draft                                                 Isode Ltd
Obsoletes: 3501 (if approved)                              B. Leiba, Ed.
Intended status: Standards Track                     Huawei Technologies
Expires: April 22, 2019                                 October 19, 2018

            INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev2
                   draft-ietf-extra-imap4rev2-02.txt

Abstract

   The Internet Message Access Protocol, Version 4rev2 (IMAP4rev2)
   allows a client to access and manipulate electronic mail messages on
   a server.  IMAP4rev2 permits manipulation of mailboxes (remote
   message folders) in a way that is functionally equivalent to local
   folders.  IMAP4rev2 also provides the capability for an offline
   client to resynchronize with the server.

   IMAP4rev2 includes operations for creating, deleting, and renaming
   mailboxes, checking for new messages, permanently removing messages,
   setting and clearing flags, RFC 5322 and RFC 2045 parsing, searching,
   and selective fetching of message attributes, texts, and portions
   thereof.  Messages in IMAP4rev2 are accessed by the use of numbers.
   These numbers are either message sequence numbers or unique
   identifiers.

   IMAP4rev2 does not specify a means of posting mail; this function is
   handled by a mail submission protocol such as RFC 6409.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 22, 2019.

Melnikov & Leiba         Expires April 22, 2019                 [Page 1]
Internet-Draft                  IMAP4rev2                   October 2018

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  How to Read This Document . . . . . . . . . . . . . . . . . .   5
     1.1.  Organization of This Document . . . . . . . . . . . . . .   5
     1.2.  Conventions Used in This Document . . . . . . . . . . . .   5
     1.3.  Special Notes to Implementors . . . . . . . . . . . . . .   6
   2.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   7
     2.1.  Link Level  . . . . . . . . . . . . . . . . . . . . . . .   7
     2.2.  Commands and Responses  . . . . . . . . . . . . . . . . .   7
       2.2.1.  Client Protocol Sender and Server Protocol Receiver .   7
       2.2.2.  Server Protocol Sender and Client Protocol Receiver .   8
     2.3.  Message Attributes  . . . . . . . . . . . . . . . . . . .   9
       2.3.1.  Message Numbers . . . . . . . . . . . . . . . . . . .   9
       2.3.2.  Flags Message Attribute . . . . . . . . . . . . . . .  11
       2.3.3.  Internal Date Message Attribute . . . . . . . . . . .  13
       2.3.4.  [RFC-5322] Size Message Attribute . . . . . . . . . .  13
       2.3.5.  Envelope Structure Message Attribute  . . . . . . . .  13
       2.3.6.  Body Structure Message Attribute  . . . . . . . . . .  13
     2.4.  Message Texts . . . . . . . . . . . . . . . . . . . . . .  13
   3.  State and Flow Diagram  . . . . . . . . . . . . . . . . . . .  13