I made all the changes, hope I did it the way you guys want it (see inline patch).

I tested all possible options, with `epa-decrypt-region', as well as
epa-verify-region.

Daiki Ueno <ueno@gnu.org> writes:

> Christian Schwarzgruber <c.schwarzgruber.cs@gmail.com> writes:
>
>> When I get a new encrypted email and I hit `C-c C-e d' (epa-mail-decrypt) epa
>> asks, if I want replace the original text. Which in my opinion is a bit
>> superfluous in this case. This will become especially unpleasant once the
>> auto-decrypt functionality is implemented in mu/mu4e.
>
> That sounds reasonable.
>
>> So I patched epa.el and added a boolean `defcustom', when set to `t',
>> the text will always be replaced without asking.
>
> I tend to make this a choice of three: never (nil), ask (a symbol),
> always (t).  Would that make sense?
>
> Also please adjust `epa-verify-region' as well.
>
> Regards,

Regards,
--
Christian Schwarzgruber