关键词: 反垃圾邮件 诚信 SMTP协议

Abstract:

Spare is getting the high attention of the researchers recently. However, there is still no method available to anti-spare actively. The paper presents innovative ideas which include the sender＇s declarative statements about the type of Email and the assignments of credits to ISPs and users accordingg to their respective behaviors. SMTP extends based on the above ideas to help restrict the propagation of spare actively and establish a creditable env ironment in the Email system.

Key words: （anti-sparta, credit, SMTP）