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:
Dec. 03, 2013
Filed:
Dec. 08, 2010
Peter Ashley, Hopkinton, MA (US);
Peter Ashley, Hopkinton, MA (US);
Symantec Corporation, Mountain View, CA (US);
Abstract
A message transfer agent generates specific error codes indicating that it has adjudicated specific received email traffic to comprise spam. The message transfer agent transmits the generated specific error codes to the sources of the specific received email traffic. An antispam computing device filters email traffic, and receives the error codes transmitted by the message transfer agent to the sources of email traffic. The antispam computing device interprets the specific received error codes as indicating that the message transfer agent adjudicated the specific email traffic to comprise spam. In response, the antispam computing device can block email traffic from these sources, such that the blocked email traffic does not reach the message transfer agent.