'Delete an existing PTR Record
:param record: the original :class:`RackspacePTRRecord`
:rtype: ``bool``'

def ex_delete_ptr_record(self, record):

    _check_ptr_extra_fields(record)
    self.connection.set_context({'resource': 'record', 'id': record.id})
    self.connection.async_request(action=('/rdns/%s' % record.extra['service_name']), method='DELETE', params={'href': record.extra['uri'], 'ip': record.ip})
    return True
