Intelligent multilevel junk email filtering method
A technology of spam and filtering methods, applied in the field of information, can solve the problems of lack of an overall solution for spam filtering, loss of semantic information, misjudgment of users' normal emails, etc.
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[0060] The present invention will be further described below in conjunction with the drawings and embodiments.
[0061] The present invention adopts multiple junk mail filtering methods, and these methods adopt a certain sequence to filter junk mails to form a multi-level filtering organic whole. figure 1 Describes the flow chart of the spam filtering process of the present invention. When an email is received, the filtering module performs filtering in the following order:
[0062] (1) First, check whether the IP address is in the whitelist. If there is, it is judged as normal mail. If not, proceed according to the subsequent filtering order.
[0063] (2) Match the IP address blacklist. If there is, it is spam. Otherwise, follow the filtering process to continue.
[0064] (3) Match the DNS whitelist. If the match is successful, it is judged to be a legitimate mail and transferred to the local delivery or forwarding module. Otherwise, continue according to the filtering process....
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