Simple mail Transfer protocol. A standard communication protocol for sending email messages between computers.

简单邮件传输协议。在计算机间发送电子邮件的标准通讯协议。

youdao

Simple mail Transfer protocol. A standard communication protocol for sending email messages between computers.

简单邮件传输协议。在计算机间发送电子邮件的标准通讯协议。

youdao