论文部分内容阅读
电子邮件是使用率最高的网络应用之一,但近来的调查显示,93%的被调查者都对他们经常接收到的大量垃圾邮件非常不满。
E-mail is one of the most-used web applications, but recent surveys show that 93% of respondents are unhappy with the amount of spam they receive regularly.