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. 15, 2011
Filed:
Dec. 27, 2004
Geoffrey J Hulten, Lynwood, WA (US);
Anthony P. Penta, Bellevue, WA (US);
David Maxwell Chickering, Bellevue, WA (US);
Eliot C. Gillum, Los Gatos, CA (US);
Gopalakrishnan Seshadrinathan, Redmond, WA (US);
Jay T. Buckingham, Kirkland, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Paul S Rehfuss, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Ryan C Colvin, Woodinville, WA (US);
Geoffrey J Hulten, Lynwood, WA (US);
Anthony P. Penta, Bellevue, WA (US);
David Maxwell Chickering, Bellevue, WA (US);
Eliot C. Gillum, Los Gatos, CA (US);
Gopalakrishnan Seshadrinathan, Redmond, WA (US);
Jay T. Buckingham, Kirkland, WA (US);
Joshua T. Goodman, Redmond, WA (US);
Paul S Rehfuss, Seattle, WA (US);
Robert L. Rounthwaite, Fall City, WA (US);
Ryan C Colvin, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Identification of email forwarders is described. In an implementation, a method includes using heuristics to identify email forwarders for use in a reputation system for locating spammers. In another implementation, a method includes determining a likelihood that a particular Internet Protocol (IP) address corresponds to an email forwarder and processing email originating from the particular IP address based on the determined likelihood. In a further implementation, a method includes collecting heuristic data that describes characteristics of emails sent from one or more Internet Protocol (IP) addresses and constructing a model from the heuristic data for identifying whether at least one of the IP address is an email forwarder. In yet a further implementation, a method includes identifying that a particular Internet Protocol (IP) address likely corresponds to an email forwarder and processing email from the particular IP address based on an implied sender of the email.