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 continuous development of the Internet, the problem of the spread of spam is worsening. This has greatly affected people’s normal work and life order and caused incalculable economic losses. This article discusses several existing anti-spam techniques. Filtering technology is currently the main technology used in anti-spam products, including black and white list, content filtering, Bayesian filtering and so on. It also introduces certification-based challenge response techniques, the Dom ainkeys system, the Call-erID program, and the e-Stamp program. Finally, we evaluated the performance of some of the antispam products we used in our work.