New comment by Eluminae on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/202#issuecomment-771575325

Comment:
> > mencrypt uses --encrypt --sign so that should be fine.
> I'll double check this part so

It seems it is not enough to emulate the mail from sr.ht

```
From: Foo bar <foo@bar>
Subject: crypted signed ?
To: toto@tutu
Date: Tue, 02 Feb 2021 12:35:51 +0100 (39 seconds ago)

--- 1: multipart/encrypted size=3155 filter="mgpg" ---
--- --- 2: multipart/mixed size=827 ---
--- --- --- 3: text/plain size=20 ---
this should be both
```