def create(fqdn_listname):
    """Create a mailing list with the given name.

        :param fqdn_listname: The fully qualified name of the mailing list,
            e.g. `mylist@example.com`.
        :type fqdn_listname: Unicode
        :return: The newly created `IMailingList`.
        :raise `ListAlreadyExistsError` if the named list already exists.
        """
