weird characters in subject with Mac OSX MAIL program

cuscus

Hello, we have detected that from our website made with WordPress and AcyMailing 7 (latest version) the subjects of our automatic emails appear wrong in the MacOSX MAIL program. As I see in AcyMailing there is no such type of character and we have reviewed and it only happens to us in automated emails.
I copy example:
Las_=C3=BAltimas_noticias_del_sector_del_Packaging, _Dise=C3=B1o_y_Merchandising?=
the correct thing and what appears to us in other programs and email browsers is
Las Últimas noticias del sector del PAckaging, Diseño y Merchandising
Thanks,

mihha

This is the issue with email client. I am sure that somewhere in the email client configuration parameters, there is a parameter which allows setting up character encoding.

Changing that parameter could solve the issue