E-mail邮件结构分析及其在邮件筛选中的应用

随着现代通信技术的发展,电子邮件成为最快捷、经济的通信手段。但是许多无用、有害的信息随之而来,需要对获得的邮件进行自动的筛选。在邮件的筛选中,对原始邮件的预处理过程(即邮件内容的提取)是一切邮件筛选技术的基础。本文在介绍RFC822、MIME规范的基础上,开发出了一个实用的邮件预处理系统,该系统在信体和信头的边界确定、附件处理、信体内容提取等方面进行了一定的改进,试验证明改进的方法在减少乱码、正确还原邮件以及降低处理维数等方面效果明显。

Analysis of E-mail's structure and application of mail filtering

With the development of contemporary communications, E-mail has become the fastest and most economical communications application in world, yet along goes a great deal of useless and harmful information, which makes the automatic filtering of E-mails necessary. The information abstraction from original E-mail (e-mail pretreatment) is the base in mail filter. In this paper, through analyzing the protocol RFC822 and MIME, an applied E-mail pretreatment system is developed. The system presents some improvement in several points, including the determination of the boundary between headers and bodies, attachment-processing and bodies-content extraction. Experiments results show clear effects in decreasing chaos, correct recovery and dimension reduction.