Pop3编码

http://blog.csdn.net/wangdetian168/archive/2007/02/06/1503525.aspx


From RFC 2047:

encoded-word = "=?" charset "?" encoding "?" encoded-text "?="

If you have text in that form, it is encoded.

The encoding can be B (Base64) or Q (quoted-printable)


MIME邮件系统的格式
http://www.codeproject.com/Articles/15611/POP3-Email-Client-with-full-MIME-Support-NET-2-0

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