[MORG] [Errata Rejected] RFC6154 (5431)

RFC Errata System <rfc-editor@rfc-editor.org> Thu, 26 July 2018 14:31 UTC

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Subject: [MORG] [Errata Rejected] RFC6154 (5431)
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The following errata report has been rejected for RFC6154,
"IMAP LIST Extension for Special-Use Mailboxes".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata/eid5431

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Status: Rejected
Type: Editorial

Reported by: Bron Gondwana <brong@fastmailteam.com>;
Date Reported: 2018-07-19
Rejected by: Alexey Melnikov (IESG)

Section: 2

Original Text
-------------
An IMAP server that supports this extension MAY include any or all of
the following attributes in responses to the non-extended IMAP LIST
command.

Corrected Text
--------------
An IMAP server that supports this extension SHOULD include any or all of
the following attributes in responses to the non-extended IMAP LIST
command.

Notes
-----
There exist clients which send a non-extended LIST command and will correctly display and interact with mailboxes usefully if their special-uses are given in the response.

Because of this, many servers are already replying with the special-use attributes, and there are no known reports of clients being broken by that behaviour.  Because of this, the MAY should be raised to a SHOULD, and server implementations should default to turning this on.
 --VERIFIER NOTES-- 
The right way to make this change is to revise the document. MAY was intended at the time of publication.


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RFC6154 (draft-ietf-morg-list-specialuse-06)
--------------------------------------
Title               : IMAP LIST Extension for Special-Use Mailboxes
Publication Date    : March 2011
Author(s)           : B. Leiba, J. Nicolson
Category            : PROPOSED STANDARD
Source              : Message Organization
Area                : Applications
Stream              : IETF
Verifying Party     : IESG