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:
May. 24, 2011
Filed:
Feb. 22, 2008
Mark E. Risher, San Francisco, CA (US);
Mark Delany, Sunnyvale, CA (US);
Anirban Kundu, San Francisco, CA (US);
Miles A. Libbey, Iv, Mountain View, CA (US);
Masumi Taketomi, Menlo Park, CA (US);
Mark E. Risher, San Francisco, CA (US);
Mark Delany, Sunnyvale, CA (US);
Anirban Kundu, San Francisco, CA (US);
Miles A. Libbey, IV, Mountain View, CA (US);
Masumi Taketomi, Menlo Park, CA (US);
Yahoo! Inc., Sunnyvale, CA (US);
Abstract
Embodiments are directed towards detecting and reporting use by a domain of a message authentication mechanism, such as DomainKeys (DK), and/or DomainKeys Identified Mail (DKIM), and enabling subsequent blocking of messages based, in part, on its usage. When a message is received by an inbound message server, a message source is determined for the message. In one embodiment, the message source is a domain name associated with the sender of the message. Statistics are recorded about the message, including the message source, whether the message is suspect, includes a forged source identifier, employs DK/DKIM message authentication, and the like. The reports may ten be sent to various message sources to enable them to determine the extent of use of DK/DKIM message authentication, and to selectively block, re-direct, or forward the messages based, in part, on the use of DK/DKIM message authentication mechanism.