Gets the smart email list.

def smart_email_list(self, status="all", client_id=None):
        """Gets the smart email list."""
        if client_id is None:
            response = self._get(
                "/transactional/smartEmail?status=%s" % status)
        else:
            response = self._get(
                "/transactional/smartEmail?status=%s&clientID=%s" % (status, client_id))
        return json_to_py(response)