Introduction - If you have any usage issues, please Google them yourself
Email e-mail application, analysis of e-mail service is the most commonly used Internet on one of the services it provides with the operating system platform-independent communication services, the use of mail services, users can e-mail network for exchanging data between information. E-mail transmission, including messages from the sender client sent to the mail server, as well as the recipient from the mail server will get back to the recipient mail client. At the same time also introduced the SMTP and POP3 works. Very detailed
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Email电子邮件应用分析.DOC