Junk mail identifying method and device

Abstract

The embodiment of the invention relates to a junk mail identifying method and device. The junk mail identifying method specifically comprises the following steps of: sending broadcast information to an opposite-end mail client, wherein the broadcast information comprises a first secret key, and the first secret key is used for generating a second secret key by the opposite-end mail client according to the first secret key, and generating a third secret key by a local mail client according to the first secret key; receiving a mail sent by the opposite-end mail client through a simple mail transmission protocol; identifying whether the second secret key exists in the simple mail transmission protocol or not; if the second secrete key exists in the simple mail transmission protocol, identifying whether the second secret key is the same as the third secret key or not; if the second secrete key is the same as the third secrete key, storing the mail; and otherwise, judging that the mail is a junk mail. Therefore, with the adoption of the method and the device provided by the invention, a user can get hold of initiative for judging the junk mail independently, so as to better prevent the junk mail from being received.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a spam identification method and device. Background technique [0002] With the development of the Internet, many legal or illegal merchants forcefully send a large amount of spam to the user's mailbox without the user's permission, thereby bringing a lot of troubles to the user. Especially when the user receives spam carrying viruses or Trojan horses, it will bring fatal harm to the user. As the problem of spam is becoming more and more serious, many software vendors have launched their own anti-spam software. [0003] At present, the method of dealing with spam generally uses whitelist technology, puts the legal sender's mailbox into the whitelist set by the user, and processes the emails in the whitelist according to different levels. Among them, the highest level is to only accept emails sent by email addresses in the white list. [0004] However, the format of spam...

AI Technical Summary

Problems solved by technology

[0004] However, the format of spam is changing with each passing day, so that it can avoid the detection of anti-spam software. For example, some spam creators do not simply broadcast emails, but spoof sending addresses, so that the white list cannot block such emails

In addition, the methods used by Internet Service Providers (ISPs) to prevent spam on mail servers are different from those used by client manufacturers, and they are not compatible with each other and are not easy to expand.

And because the email ISP is very powerful, many manufacturers of advertising emails now cooperate with the email ISP. The email ISP can invalidate the white list through its powerful authority, and the user has no initiative

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