Subject: bug#51733: 27.1; Detect impossible email addresses better

From: Lars Ingebrigtsen <[email-masked]>
Date: Thu, 20 Jan 2022 09:57:37 +0100

積丹尼 Dan Jacobson <[email-masked]> writes:

> Upon sending,
> To: [email-masked]​
> should trigger a warning:
> "You won't get far trying to send mail with ZERO WIDTH SPACE in an address,"
> instead of blundering along and sending to "gcssafetyace.xn--com-7m0a"!!

This has now been fixed in Emacs 29, and may probably be the highest
"line number in fix" to "line numbers in report" ratio ever, with 14K
lines of data added, and about 600 lines of code.  Congrats!

(So I'm now closing this bug report.)

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no