随着互联网的发展,网络应用越来越广泛,电子邮件已经成为人们日常生活中通信和交流的重要手段之一,但垃圾邮件和病毒邮件问题也日益严峻,每天收到的垃圾邮件和病毒邮件数量已经超过了正常邮件,严重影响了用户对电子邮件的正常使用。文中从长尾理论的概念入手,简单介绍了长尾理论的应用,通过对过滤的垃圾邮件和病毒邮件进行统计和分析,揭示了垃圾邮件和病毒邮件也具有长尾现象,从中得出了防止和控制垃圾邮件和病毒邮件的新方法和新途径。 With the development of the Internet, the network is used more and more widely. E-mail has become one of the important means of communication and exchange in daily life. However, the problem of spam and virus e-mail is also getting more and more serious. Every day, spam and virus mail The number has exceeded the normal mail, seriously affecting the normal use of e-mail users. Beginning with the concept of long-tail theory, this paper briefly introduces the application of long tail theory. Through the statistics and analysis of filtered spam and virus mail, it reveals that the spam and virus mail also have a long tail phenomenon, And new ways and ways to control spam and virus mail.