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:
Feb. 03, 2009
Filed:
Feb. 04, 2005
Jay T. Buckingham, Kirkland, WA (US);
John D. Mehr, Seattle, WA (US);
Paul S Rehfuss, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Jay T. Buckingham, Kirkland, WA (US);
John D. Mehr, Seattle, WA (US);
Paul S Rehfuss, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Network domain reputation-based spam filtering is described. In an embodiment, emails are received from a network domain and a reputation of the network domain is established. Additional emails are filtered as they are received to determine a status of each email as spam email or not spam email. An email can be determined to be a spam email based on any one or more of the reputation of the network domain, an authentication status of an email, and other information that can be derived from an email.