Imapext Workgroup RFCs

Browse Imapext Workgroup RFCs by Number

RFC4314 - IMAP4 Access Control List (ACL) Extension

The Access Control List (ACL) extension (RFC 2086) of the Internet Message Access Protocol (IMAP) permits mailbox access control lists to be retrieved and manipulated through the IMAP protocol.

This document is a revision of RFC 2086. It defines several new access control rights and clarifies which rights are required for different IMAP commands. [STANDARDS-TRACK]

RFC4551 - IMAP Extension for Conditional STORE Operation or Quick Flag Changes Resynchronization

Often, multiple IMAP (RFC 3501) clients need to coordinate changes to a common IMAP mailbox. Examples include different clients working on behalf of the same user, and multiple users accessing shared mailboxes. These clients need a mechanism to synchronize state changes for messages within the mailbox. They must be able to guarantee that only one client can change message state (e.g., message flags) at any time. An example of such an application is use of an IMAP mailbox as a message queue with multiple dequeueing clients.

The Conditional Store facility provides a protected update mechanism for message state information that can detect and resolve conflicts between multiple writing mail clients.

The Conditional Store facility also allows a client to quickly resynchronize mailbox flag changes.

This document defines an extension to IMAP (RFC 3501). [STANDARDS-TRACK]

RFC5255 - Internet Message Access Protocol Internationalization

Internet Message Access Protocol (IMAP) version 4rev1 has basic support for non-ASCII characters in mailbox names and search substrings. It also supports non-ASCII message headers and content encoded as specified by Multipurpose Internet Mail Extensions (MIME). This specification defines a collection of IMAP extensions that improve international support including language negotiation for international error text, translations for namespace prefixes, and comparator negotiation for search, sort, and thread. [STANDARDS-TRACK]

RFC5256 - Internet Message Access Protocol - SORT and THREAD Extensions

This document describes the base-level server-based sorting and threading extensions to the IMAP protocol. These extensions provide substantial performance improvements for IMAP clients that offer sorted and threaded views. [STANDARDS-TRACK]

RFC5257 - Internet Message Access Protocol - ANNOTATE Extension

The ANNOTATE extension to the Internet Message Access Protocol permits clients and servers to maintain "meta data" for messages, or individual message parts, stored in a mailbox on the server. For example, this can be used to attach comments and other useful information to a message. It is also possible to attach annotations to specific parts of a message, so that, for example, they could be marked as seen, or important, or a comment added.

Note that this document was the product of a WG that had good consensus on how to approach the problem. Nevertheless, the WG felt it did not have enough information on implementation and deployment hurdles to meet all of the requirements of a Proposed Standard. The IETF solicits implementations and implementation reports in order to make further progress.

Implementers should be aware that this specification may change in an incompatible manner when going to Proposed Standard status. However, any incompatible changes will result in a new capability name being used to prevent problems with any deployments of the experimental extension. This memo defines an Experimental Protocol for the Internet community.

RFC5258 - Internet Message Access Protocol version 4 - LIST Command Extensions

IMAP4 has two commands for listing mailboxes: LIST and LSUB. As we have added extensions, such as Mailbox Referrals, that have required specialized lists we have had to expand the number of list commands, since each extension must add its function to both LIST and LSUB, and these commands are not, as they are defined, extensible. If we've needed the extensions to work together, we've had to add a set of commands to mix the different options, the set increasing in size with each new extension. This document describes an extension to the base LIST command that will allow these additions to be done with mutually compatible options to the LIST command, avoiding the exponential increase in specialized list commands. [STANDARDS-TRACK]