GNU bug report logs - #51733
27.1; Detect impossible email addresses better

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Packages: emacs, gnus;

Reported by: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>

Date: Wed, 10 Nov 2021 00:29:01 UTC

Severity: wishlist

Found in version 27.1

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Robert Pluĭm
 <rpluim <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 51733 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>
Subject: bug#51733: 27.1; Detect impossible email addresses better
Date: Wed, 19 Jan 2022 14:39:20 +0100

>>>>> On Wed, 19 Jan 2022 14:02:56 +0100, Lars Ingebrigtsen <larsi <at> gnus.org> said:

    Lars> Eli Zaretskii <eliz <at> gnu.org> writes:
    >> Is that expectation reasonable?  I can show you many email addresses
    >> that violate that.

    Lars> It depends on what you mean.  There are no valid email addresses that
    Lars> have non-ASCII name parts -- when we're talking wire format (RFC2047
    Lars> etc), which is what that function is parsing.

I canʼt recall if this is allowed by the standards or not offhand, but
as youʼre probably well aware, the major email providers allow you to
use UTF-8 characters directly in the display name of email adresses,
without using RFC 2047 encoding. In fact, the last time I did any
testing of this, Gmail *replaced* RFC 2047 encoded non-ASCII
characters with their UTF-8 encoding.

Robert
--
This bug report was last modified 3 years and 124 days ago.

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