电子信件邮递系统（EMS）是工作在计算机网络上的信息发送、接收和管理系统，是办公室自动化系统中的先进通讯手段。
Electronic mail system ( EMS ) is envisioned to work in a computer network for message forwarding , receipt and management , It is a sophisticated communication facility in office automation .
电子邮递