The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2011
Filed:
Dec. 31, 2004
Jay T. Buckingham, Kirkland, WA (US);
Geoffrey J Hulten, Lynwood, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Jay T. Buckingham, Kirkland, WA (US);
Geoffrey J Hulten, Lynwood, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Email spam filtering is performed based on a sender reputation and message features. When an email message is received, a preliminary spam determination is made based, at least in part, on a combination of a reputation associated with the sender of the email message and one or more features of the email message. If the preliminary spam determination indicates that the message is spam, then a secondary spam determination is made based on one or more features of the received email message. If both the preliminary and secondary spam determinations indicate that the received email message is likely spam, then the message is treated as spam.