MAIL FILTERING INFORMATION SAVING METHOD, MAIL SERVER AND E-MAIL SYSTEM

摘要

Disclosed is a mail filtering information saving method, comprising: a mail server performing a filtering operation based on a preset anti-spam rule after receiving a mail sent by a user, and generating anti-spam filtering result information, the mail comprising a header and a body; and the mail server generating a current "X-Coremail-Antispam" field in accordance with the anti-spam filtering result information, and adding the current "X-Coremail-Antispam" field to the header of the mail. By implementing the present invention, a mail system administrator can clearly know mail filtering information through the "X-Coremail-Antispam" field. Thus, when the mail is filtered as spam by mistake, the mail system administrator can rapidly know the mail is filtered according to what rules. Meanwhile, the filtering information is uniformly added to the "X-Coremail-Antispam" field, thereby preventing too much cumbersome filtering information from existing in the mail, and facilitating extraction and use. In addition, the information in the "X-Coremail-Antispam" field can be used for intelligent learning to increase the anti-spam effect.