反垃圾邮件技术概述及几种邮件网关产品性能分析

Anti-spam technology:a summary account and analysis for performance of gateways

随着Internet的不断发展,垃圾邮件泛滥的问题日趋严重,极大地影响了人们正常的工作和生活秩序,并造成了不可估量的经济损失。本文讨论了现有的几种反垃圾邮件技术。过滤技术是目前反垃圾邮件产品用到的主要技术,包括黑白名单、内容过滤、贝叶斯过滤等等。并对基于认证的挑战应答技术、Dom ainkeys系统、“Call-erID”计划和“电子邮票”方案进行了介绍。最后,对我们在实际工作中用过的一些反垃圾邮件产品的性能进行了测评。

With the development of the Intemet, spare problem becomes a more and more serious issue. It has severely affected our lives, which leads to inestimable economic loss. In this paper, the existing anti-spare techniques are discussed. The discussion mainly focus on filtering, which is the dominant technique employed by current anti-spare softwares. It includes strategies such as black list/safe list, content filtering, bias filtering and so on. Then the different proposals of anti-spare techniques, such as challenge response based on authentication, Domainkeys, ＂ CallerID＂ plan and electronic stamping protocol are introduced. Lastly, various anti-spare softwares in the market are analyzed.