资料来源 : pyDict

邮件桥,(是一个将信件从一个网络发送到另一个网络的主机)

资料来源 : Free On-Line Dictionary of Computing

mail bridge
     
         A {mail gateway} that {forward}s {electronic mail}
        messages between two or more networks if they meet certain
        administrative criteria.
     
        (1996-02-26)