Hello,

I meet a problem with a transformation of ' into ? with French emails in
gnus. I guess that is a bug in org-mime-htmlize. Here is an example: 

Le   ven.    20   avril   2018    à   09:43:54   ,    G.  D.
<g.d@univ-lorraine.fr> a envoyé ce message:

> Possibilité d'utiliser son propre matériel ou d'en louer sur place...

Of course the ? in this gmail_quote are incorrect.

Your help is welcome. 

 Best wishes,
-- 
Jo.