docs: def from_email(self, value):
          """The email address of the sender
  
          :param value: The email address of the sender
          :type value: From, str, tuple
          """
          if isinstance(value, str):
              value = From(value, None)
          if isinstance(value, tuple):
              value = From(value[0], value[1])
          self._from_email = value