[Extra] [Technical Errata Reported] RFC9051 (7323)

RFC Errata System <rfc-editor@rfc-editor.org> Thu, 26 January 2023 18:40 UTC

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Subject: [Extra] [Technical Errata Reported] RFC9051 (7323)
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The following errata report has been submitted for RFC9051,
"Internet Message Access Protocol (IMAP) - Version 4rev2".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid7323

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Type: Technical
Reported by: Nicholas Evans <nicholas.evans@gmail.conm>

Section: 6.4.4.4

Original Text
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        S: B283 NO [BADCHARSET UTF-8] KOI8-R is not supported


Corrected Text
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        S: B283 NO [BADCHARSET (UTF-8)] KOI8-R is not supported


Notes
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The BADCHARSET response code is described in 7.1 as "Optionally followed by a parenthesized list of charsets", and in the formal syntax as:

   resp-text-code =/ "BADCHARSET" [SP "(" charset *(SP charset) ")" ]

Although a client's parser might use a generic resp-text-code (atom [SP 1*<any TEXT-CHAR except "]">]) as a fallback, the server should parenthesize even when only one charset is sent.

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RFC9051 (draft-ietf-extra-imap4rev2-30)
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Title               : Internet Message Access Protocol (IMAP) - Version 4rev2
Publication Date    : August 2021
Author(s)           : A. Melnikov, Ed., B. Leiba, Ed.
Category            : PROPOSED STANDARD
Source              : Email mailstore and eXtensions To Revise or Amend
Area                : Applications and Real-Time
Stream              : IETF
Verifying Party     : IESG