METHOD FOR IDENTIFYING SPAM MAIL AND MAIL SERVER USING THE SAME

摘要

A method for identifying a spam mail and a mail server using the method are provided. The method includes: when receiving a mail, retrieving a mail header of the mail; obtaining reference servers from a received line of the mail header; obtaining mail forwarding information of a mail forwarding host of each of the reference servers, and obtaining mail receiving information of a mail receiving host of each of the reference servers; comparing the mail forwarding information of an i-th reference server with the mail receiving information of an (i−1)-th reference server; and when the mail forwarding information of the i-th reference server is completely different from the mail receiving information of the (i−1)-th reference server, identifying the mail as the spam mail.

主权项

1. A spam mail identifying method for a mail server, the spam mail identifying method comprising:
retrieving a mail header of a mail when receiving the mail; obtaining a plurality of reference servers from a received line of the mail header, wherein each of the reference servers is a mail transfer agent server, and the reference servers transfer the mail according to a sequence; obtaining a plurality of pieces of mail forwarding information of a mail forwarding host and a plurality of pieces of mail receiving information of a mail receiving host of each of the reference servers; comparing the pieces of the mail forwarding information of an i-th reference server with the pieces of the mail receiving information of an (i−1)-th reference server of the reference servers, wherein i is a positive integer; and identifying the mail as a spam mail if the pieces of the mail forwarding information of the i-th reference server are completely different from the pieces of the mail receiving information of the (i−1)-th reference server.