基于网络数据包的邮件信息获取技术研究

为了遏制网络中大量存在的垃圾邮件，需要对网络中传输的邮件信息进行获取，以实
现垃圾邮件的恰当过滤。本文通过分析邮件传输的两种方式，讨论了与邮件信息获取相关的若干问题，主要包括网络数据包的捕获与重组、基于SMTP/POP3 协议的邮件信息获取技术以及基于HTTP 协议的Webmail 邮件信息获取技术。实际应用表明，本文所讨论的邮件信息获取技术具有较大实用价值，为实现垃圾邮件的过滤奠定了重要的技术基础。
关键词：简单邮件传输协议；邮局协议3；Webmail 邮件；网络数据包捕获；邮件信息获取
Abstract: To reject spam on the internet, mail information transmitted on the network should be captured in order to filter the spam properly. By analyzing two typical ways through which e-mails are transferred, this paper discussed some issues about mail information extraction, including capturing and reordering of the network packages, extracting of mail information based on SMTP/POP3 and HTTP. Practical application indicates that those mail information extraction techniques have certain practical value and founds a firm technology base for spam filtering.
Key words: SMTP, POP3, Webmail, Network package capture, Mail information extraction