Make sure that our addressees are a unicoded list

        Arguments:
        - `to`: str or list

        Return: [u, ...]
        Exceptions: None

def tolist(self, to):
        """
        Make sure that our addressees are a unicoded list

        Arguments:
        - `to`: str or list

        Return: [u, ...]
        Exceptions: None
        """
        return ', '.join(isinstance(to, list) and [u(x) for x in to] or [u(to)])