Microsoft mobile email software users previously had to dial up the server to get messages.
此前，微软的移动电邮软件用户必须拨号连接服务器才能获取讯息。
Most email software allow the storage of such group lists, enabling users to select a name for each group and send messages without having to type multiple addresses.
大多数电子信函软件都能储存这样的地址列表，允许使用者为每组起个名字以便在发送信件时无须录入全部地址。
Current Email software could supply simple filters, but the filters need users to make complicated rules in several items.
目前大部分的电子邮件收发软件，都提供简单的过滤功能，不过需要用户对有限的检测项目制定繁琐的规则。
Absrtact: EML is a kind of general format supported by all kinds of Email software and this format follows the standard of RFC822 and its extensions.
摘要：EML格式是各类电子邮件软件中所支持的一种通用格式，遵循rfc822及其后续扩展。
The encryption and decryption procedure of PGP is studied in detail and its security is briefly presented. Finally, the way to use PGP in common Email software to protect Email is analysed.
首先介绍了互联网上加密电子邮件的新软件——PGP，具体分析了用PGP加、解密电子邮件的详细过程，并简单讨论了PGP的安全性能，最后分析了目前最常用的电子邮件上的PGP加密功能。
The encryption and decryption procedure of PGP is studied in detail and its security is briefly presented. Finally, the way to use PGP in common Email software to protect Email is analysed.
首先介绍了互联网上加密电子邮件的新软件——PGP，具体分析了用PGP加、解密电子邮件的详细过程，并简单讨论了PGP的安全性能，最后分析了目前最常用的电子邮件上的PGP加密功能。
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