Subject: bug#53412: wrappin text lines is not enough, headers shoould be split too

From: Lars Ingebrigtsen <[email-masked]>
Date: Mon, 07 Mar 2022 16:57:46 +0100

Francesco Potortì <[email-masked]> writes:

>>> If there is an overlong header, other headers which are utf-8
>>> escaped are not sent correctly, and the recipient sees something
>>> like this:
>>>
>>> Subject: test =?utf-8?Q?=C3=A0?= b c
>>>  =?utf-8?Q?=C3=AC?=
>>
>>That looks correct to me?
>
> No, if that's what the recipent sees in their inbox.  I don't know
> why, but mail sent by Emacs with an overlong header (whichever header)
> ends up with recipients seeing that string in their MUA.

They see literally that displayed?  Then it sounds like the mail you're
sending out has been double-rfc2047-encoded.

> I can send mail to you or this list to demonstrate the problem, if you
> think that would be useful

Sure.

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