Re: MIME issue: can't set encoding on mail or mml-to-mime

[Radu Butoi]

Hi Gregor,

Gregor Zattler <telegraph@gmx.net> writes:

> Hi Radu, emacs users,
> * Radu Butoi <rbutoi@gmail.com> [2020-05-05; 17:39]:
>> Hello all,
>>
>> Following the message and MIME manuals, I want to change the
>> `Content-Transfer-Encoding` on outgoing mail to quoted-printable [1].
>
> My understanding is that quoted-printable is used if the
> message for some reason does not fit the rfc.  So if you
> send an email with lines exeeding the length limit of the
> rfc your helpful MUA will encode your email.  This email
> hopefully proves this point.
>
>
> How about a paragraph which consists only of a single long line which is much 
> longer than the maximum length the RFC allows for transportation?  Surely the 
> MUA will reformat this somehow?  This line length limit might be well above 
> 1000 charactzers, so we have to fill this space somehow.  How about 
> repetition: [...]

Yes, that did it, thank you! I feel pretty silly right now. I tested sending 
emails > 78 characters, but not over the absolute limit of 998 (from RFC5322:)

> Each line of characters MUST be no more than 998 characters, and SHOULD be no 
> more than 78 characters, excluding the CRLF.

I've now set up my message-mode to not use auto-fill-mode but 
visual-fill-column-mode, in order to soft wrap rather than hard wrap.

To answer your other email:

> but isn't this because you send paragraphes as single long
> lines?  Why do you need the encoding changed?

I was trying to manually do so, not knowing it's done automatically.

Thanks a lot for your help and sticking with this!
-Radu