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Terms for subject Cryptography containing | all forms
ChineseEnglish
保证certified mail
件传输协议simple mail transport protocol
在线电子on-line electronic postage
垃圾件过滤软件spam filtering software
增强保密privacy enhanced mail
多媒体网际网路件延伸multimedia Internet mail extensions
多用途网际件扩充协议secure/multipurpose internet mail extensions
安全多用途 Internet 件扩展secure /multipurpose Internet mail extensions
电子electronic postage
离线电子off-line electronic postage
简单件传输协议simple mail transport protocol
认证certified mail
件安全装置postal security device