Some special characters lost in e-mail message

Hello,
when creating e-mail templates I can use special characters Č Ć Ž Š Đ in content box. Please see below.

But when I actually use the template when sending e-mail some special characters are lost and replaced with “?”. Please see below.

I’m using Dolibarr 14.0.2 on server, Chrome, WIN 10.

I’m having the same problem here, when using the HTML-format (FCKEDITOR) for creating mails special characters are displayed correctly but using the default sending method dolibarr uses all special characters get translated into a questionmark. Unfortunately i haven’t found a possibility to force dolibarr to use the HTML format for sending mails. So every automated notification from dolibarr contains those questionmarks.
Could you fix the issue or does anyone know a solution to this?