Method and device for identifying spam mail

A mail fingerprint generating method for identifying spam mail, comprising:

• extracting a mail feature of an e-mail to be identified, the mail feature indicating a feature having a stability characteristic extracted from the e-mail;
• generating feature string information from the mail feature;
• and
• generating a mail fingerprint from the feature string information.

A non-transitory computer readable medium that stores a set of instructions that is executable by at least one processor of an electronic device to cause the electronic device to perform a method for identifying spam mail, the method comprising:

• extracting a mail feature of an e-mail to be identified, the mail feature indicating a feature having a stability characteristic extracted from the e-mail;
• generating feature string information from the mail feature;
• generating a mail fingerprint from the feature string information;
• comparing the generated mail fingerprint with an existing fingerprint in a preset mail fingerprint set;
• responsive to the comparison indicating that the mail fingerprint corresponds with the existing fingerprint, increasing a count of e-mails having the mail fingerprint;
• determining whether the count of e-mails having the mail fingerprint is greater than or equal to a preset threshold;
• and
• responsive to the count of e-mails having the mail fingerprint is greater than or equal to a preset threshold, determining the e-mail to be identified as a spam mail.

A non-transitory computer readable medium that stores a set of instructions that is executable by at least one processor of an electronic device to cause the electronic device to perform a mail fingerprint generating method for identifying spam mail, the method comprising:

• extracting a mail feature of an e-mail to be identified, the mail feature indicating a feature having a stability characteristic extracted from the e-mail;
• generating feature string information from the mail feature;
• and
• generating a mail fingerprint from the feature string information.