该文档详细分析了邮箱客户端，比如outlook和foxmail的发送和接收邮件的数据包内容形式和编码格式，能很好的为从事邮箱数据记录提供基础研究-The document analyzes the mail client, such as outlook and foxmail send and receive mail packet content and encoding formats, can be well engaged in basic research mailbox data