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A method and device for preventing from spam

An anti-spam and spam technology, applied in the direction of electrical components, digital transmission systems, transmission systems, etc., can solve the problems of denial of service attacks, the inability to limit the spread of worm emails, and the inability to limit the consumption of spam traffic, so as to increase the sending cost , reduce marginal benefit, fine control effect

Inactive Publication Date: 2010-03-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of this technology cannot limit the consumption of network bandwidth by spam traffic, especially when the worm virus is transmitted by mail, it cannot limit the spread of worm mail on the Internet; Mail senders can easily launch a denial of service attack on the mail server

Method used

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  • A method and device for preventing from spam
  • A method and device for preventing from spam
  • A method and device for preventing from spam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1. A method for anti-spam, the flow chart is as follows figure 1 shown, including:

[0043] 101. Perform spam possibility analysis on the email to obtain the spam possibility level of the email;

[0044] In this embodiment, after the email has been analyzed for the possibility of spam, after receiving the email, the conventional analysis methods in the existing spam filtering technology, such as whitelist, blacklist, content-based filtering, etc., can be used. This step It is emphasized that the spam possibility level of the email is obtained after analyzing the received email, and the specific analysis method does not constitute a limitation to the present invention.

[0045] 102. Find the damping control coefficient corresponding to the spam possibility level;

[0046] 103. Damping the mail data flow from the mail sender according to the damping control coefficient.

[0047] The present invention introduces the concepts of damping and damping control coe...

Embodiment 2

[0052] Embodiment 2, a method for anti-spam, the flow chart is as follows image 3 shown, including:

[0053] 301. Perform spam possibility analysis on the email to obtain the spam possibility level of the email;

[0054] 302. Find and obtain the value of the transmission window corresponding to the spam possibility level;

[0055] 303. Limit the transmission window of the mail data packet from the mail sender according to the value of the transmission window.

[0056] Please also refer to Figure 4 , which is a schematic diagram of the signaling flow for limiting the data packet transmission window in this embodiment, including:

[0057] The sender sends a connection request;

[0058] The receiver sends a response to the connection request to the sender, and the response includes notifying the sender of the value of the window; in the figure, the value of the window is m bytes.

[0059] After receiving the response, the sender sends a data packet to the receiver, and the...

Embodiment 3

[0061] Embodiment three, a kind of anti-spam method, flow chart such as Figure 5 shown, including:

[0062] 501. Perform spam possibility analysis on the email to obtain the spam possibility level of the email;

[0063] 502. Search and obtain the discarding period corresponding to the spam possibility level for discarding data packets preset by the email sender;

[0064] 503. Periodically discard a preset number of mail data packets for mail data traffic from the mail sender according to the discarding period.

[0065] The difference between Embodiment 3 and Embodiment 1 and Embodiment 2 is that the damping is to discard a preset number of mail data packets for the mail flow from the sender, and the damping control coefficient is to discard a preset number of mail data The discarding period of the packet; the damping mode adopted in this embodiment is based on the timeout retransmission mechanism of the TCP protocol, and the transmission of the mail data flow is hindered by...

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Abstract

The invention discloses a method and a device of anti-spam email. The method and the device analyze the spam possibility of the emails to obtain a damp controlling coefficient; and carry out the dampon the email data flow capacity from an email sender according to the damp controlling coefficient. The invention avoids the deletion of a normal email due to a false alarm and the loss of users due to mail delivery rejection, which are caused by the spam email filter process on an application layer in a prior art. At the same time, the invention adopts the damping way towards the spam email flowcapacity, which effectively reduces a sending efficiency of the spam email. Compared with a storage-retransmission method applied in the prior art, the invention can limit network bandwidth consumption due to the spam email flow capacity and decrease pressure of a spam email gateway and an email server.

Description

technical field [0001] The invention relates to the technical field of e-mail processing, in particular to an anti-spam method and device. Background technique [0002] With the rapid development of the Internet (Internet), e-mail technology is widely used, providing users with convenient and fast communication methods. At the same time, the spam problem that follows has also become a serious problem faced by Internet users. Recent studies have shown that more than 50% of emails received by users' mailboxes are spam. Dealing with this spam takes a lot of valuable time from users. [0003] The problem of spam is so severe and a major factor affecting the efficiency of the normal mail system of the network, mainly because of two reasons: the first is that the cost of sending these mails is very cheap; the second reason is that mail can be sent to Receiving end. [0004] Based on the above reasons, in order to resist spam, the existing technology has been considered from tw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/58H04L29/06
Inventor 刘竟刘峤秦志光郑志彬张凤荔
Owner HUAWEI TECH CO LTD
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