Internet Email to Support Diverse Service Environments (Lemonade) Profile
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From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, lemonade mailing list <firstname.lastname@example.org>, lemonade chair <email@example.com> Subject: Protocol Action: 'Lemonade Profile' to Proposed Standard The IESG has approved the following document: - 'Lemonade Profile ' <draft-ietf-lemonade-profile-08.txt> as a Proposed Standard This document is the product of the Enhancements to Internet email to Support Diverse Service Environments Working Group. The IESG contact persons are Ted Hardie and Lisa Dusseault. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-lemonade-profile-08.txt
Technical Summary The LEMONADE profile is a profile (a set of required extensions, restrictions and usage modes) of the IMAP and mail submission 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. Working Group Summary The IETF LEMONADE WG has done considerable work on developing protocols to support features to improve email access in diverse environments. This includes various efficiency improvements to the base IMAP and SMTP protocols that have been documented in separate documents. A notable addition is a mechanism to forward a message without downloading it to the client. The profile explains this and other improvements along with examples. To aid interoperability, this document indicates which IMAP & SMTP extensions are mandatory. Though work is continuing on additional improvements, there is consensus in the WG to progress the LEMONADE profile. Protocol Quality The profile lists several new features to IMAP and SMTP that have already been implemented by several vendors. This has already resulted in changes to the spec to clarify the protocols. In addition it has resulted in removing some other new protocols that are not fully baked at this time and will be included in a later revision of this document. The document was reviewed for the IESG by Ted Hardie. The PROTO shepherd is Glenn Parsons.