Hi pgr. 
Thank you for your repy.
Well…
Sales —> Leads —> the lead --> click email in the lead record —> email window pops up with the WYSIWYG editor.
It would be nice if you could set a default size/font because it adds a default standardization for the the whole company organization when we send out emails so the emails looks the same.
Oh… And thank you very much for confirming that there isn’t a global setting for this in the administrator back-end. Then I do not have to waste any time further attempting to look for it…
Thanks a bunch. 
Kind regards
PowerQuest