The Internet Email to Support Diverse Service Environments (Lemonade) Profile
RFC 5550
Document | Type |
RFC - Proposed Standard
(August 2009; No errata)
Obsoletes RFC 4550
|
|
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Authors | Dave Cridland , Stéphane Maes , Alexey Melnikov | ||
Last updated | 2018-12-20 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5550 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Chris Newman | ||
Send notices to | (None) |
Network Working Group D. Cridland, Ed. Request for Comments: 5550 A. Melnikov, Ed. Obsoletes: 4550 Isode Limited Updates: 4469, 4467 S. Maes, Ed. Category: Standards Track Oracle August 2009 The Internet Email to Support Diverse Service Environments (Lemonade) Profile Abstract This document describes a profile (a set of required extensions, restrictions, and usage modes), dubbed Lemonade, of the IMAP, mail submission, and Sieve protocols. This profile allows clients (especially those that are constrained in memory, bandwidth, processing power, or other areas) to efficiently use IMAP and Submission to access and submit mail. This includes the ability to forward received mail without needing to download and upload the mail, to optimize submission, and to efficiently resynchronize in case of loss of connectivity with the server. The Lemonade Profile relies upon several extensions to IMAP, Sieve, and Mail Submission protocols. The document also defines a new IMAP extension and registers several new IMAP keywords. Status of This Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Copyright Notice Copyright (c) 2009 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 in effect on the date of publication of this document (http://trustee.ietf.org/license-info). Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Cridland, et al. Standards Track [Page 1] RFC 5550 Lemonade Profile August 2009 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. Introduction ....................................................3 2. Conventions Used in This Document ...............................4 3. Summary of the Required Support .................................4 3.1. Lemonade Submission Servers ................................4 3.2. Lemonade Message Stores ....................................5 3.3. Lemonade Message Delivery Agents ...........................7 4. Lemonade Submission Servers .....................................7 4.1. Forward without Download ...................................7 4.2. Pipelining .................................................8 4.3. DSN Support ................................................8 4.4. Message Size Declaration ...................................8 4.5. Enhanced Status Code Support ...............................8 4.6. Encryption and Compression .................................8 5. Lemonade Message Stores .........................................9 5.1. Quick Resynchronization ....................................9 5.2. Message Part Handling ......................................9 5.3. Compression ...............................................10 5.4. Notifications .............................................10 5.5. Searching and View Filters ................................12 5.6. Mailbox Handling ..........................................12 5.7. Forward without Download ..................................12 5.8. Additional IMAP Extensions ................................13 5.9. Registration of $Forwarded IMAP Keyword ...................13 5.10. Registration of $SubmitPending and $Submitted IMAP Keywords ............................................13 5.11. Related IMAP Extensions ..................................14 6. Lemonade Message Delivery Agents ...............................14Show full document text