array (size=2) 'body' => string 'TEST' 'from_email' => string 'email@email.fr'
object(stdClass)[29] public 'description' => string 'Validation failed' (length=17) public 'errors' => array (size=1) 0 => object(stdClass)[24] public 'field' => string 'from_email' (length=10) public 'message' => string 'There is no active email_config matching the given from_email' (length=61) public 'code' => string 'invalid_value' (length=13)