FIX #10738 TIME 2 add mail in configuration sendmail

...app/configuration/controllers/ConfigurationController.php

src/app/email/controllers/EmailController.php

...istration/sendmail/sendmail-administration.component.html

...inistration/sendmail/sendmail-administration.component.ts

src/frontend/lang/lang-en.ts

src/frontend/lang/lang-fr.ts

src/frontend/lang/lang-nl.ts