def send_data(self, *data):
        send_data = Reply(command=b'[SEND_DATA]')
        self.reply_queue.append(send_data)

        data_sender = DataSender(*data)
        data_sender.send(self.io)

        if 'PIPELINING' not in self.extensions:
            self._flush_pipeline()

        return send_data
Processes and sends message data. At the end of the message data,
dataset/ETHPy150Open slimta/python-slimta/slimta/smtp/client.py/Client.send_data