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Status: Verified (1)

RFC 6857, "Post-Delivery Message Downgrading for Internationalized Email Messages", March 2013

Source of RFC: eai (app)

Errata ID: 3955
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Peter Occil
Date Reported: 2014-04-10
Verifier Name: Barry Leiba
Date Verified: 2014-04-16

Section A says:

   Received: from ... by ...
   Received: from ... by ...
   From: =?UTF-8?Q?DISPLAY-LOCAL?=
         =?UTF-8?Q?NON-ASCII-LOCAL@example.com?= :;
   To:   =?UTF-8?Q?DISPLAY-REMOTE1?=
         =?UTF-8?Q?NON-ASCII-REMOTE1@example.net?= :;,
         =?UTF-8?Q?DISPLAY-REMOTE2?=
         =?UTF-8?Q?NON-ASCII-REMOTE2@example.com?= :;,
   Cc:   =?UTF-8?Q?DISPLAY-REMOTE3?=
         =?UTF-8?Q?NON-ASCII-REMOTE3@example.org?= :;

It should say:

   Received: from ... by ...
   Received: from ... by ...
   From: =?UTF-8?Q?DISPLAY-LOCAL?=
         =?UTF-8?Q?NON-ASCII-LOCAL=40example=2Ecom?= :;
   To:   =?UTF-8?Q?DISPLAY-REMOTE1?=
         =?UTF-8?Q?NON-ASCII-REMOTE1=40example=2Enet?= :;,
         =?UTF-8?Q?DISPLAY-REMOTE2?=
         =?UTF-8?Q?NON-ASCII-REMOTE2=40example=2Ecom?= :;,
   Cc:   =?UTF-8?Q?DISPLAY-REMOTE3?=
         =?UTF-8?Q?NON-ASCII-REMOTE3=40example=2Eorg?= :;

Notes:

The characters '@' and '.' cannot appear in an encoded-word occurring
in a phrase (see rule 3 of section 5 of RFC 2047), so they must be escaped
with '=40' and '=2E', respectively, in the Q encoding.

Status: Reported (1)

RFC 6857, "Post-Delivery Message Downgrading for Internationalized Email Messages", March 2013

Source of RFC: eai (app)

Errata ID: 6573
Status: Reported
Type: Technical
Publication Format(s) : TEXT

Reported By: Kaspar Etter
Date Reported: 2021-05-05

Section A says:

   From: =?UTF-8?Q?DISPLAY-LOCAL?=
         =?UTF-8?Q?NON-ASCII-LOCAL=40example=2Ecom?= :;

It should say:

   From: =?UTF-8?Q?DISPLAY-LOCAL_?=
         =?UTF-8?Q?NON-ASCII-LOCAL=40example=2Ecom?= :;

Notes:

Taking the original text from Errata 3955 (https://www.rfc-editor.org/errata/eid3955), the two encoded-words decode to: DISPLAY-LOCALNON-ASCII-LOCAL@example.com :; (According to section 6.2 of RFC 2047, linear whitespace between adjacent encoded-words is ignored.) This is clearly not desirable and thus a space should be encoded at the end of all display names in appendix A.

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