本文分析了SMTP(ESMTP)/POP3 协议,MIME 和RFC822 的邮件格式和实现机理, 以Windows CE 为开发平台,采用eMbedded Visual Tools 开发工具设计实现了适于嵌入式移动设备所使用的电子邮件系统,并通过了不同环境下的运行效果测试。 关键字: WindowsCE;SMTP 协议;POP3 协议;MIME 邮件格式 Abstract:the paper introduces the mechanism of SMTP(ESMTP)/POP3 protocol and the mail format of MIME/RFC822,.Based on Windows CE and Microsoft eMbedded Visual Tools, the author designs and implements an embedded e-mail system for mobile applications.In different environments the performance is better. Key Words: WindowsCE;SMTP protocol;POP3 protocol;MIME mail format