Patent 9143476 was granted and assigned to Return Path on September, 2015 by the United States Patent and Trademark Office.
A classification system has a classification server that receives data for an email and determines if the email message is suspicious, legitimate but failing authentication, forwarded or fully authenticated and legitimate when the domains are owned, or not owned, by the domain owner. Email messages are categorized and presented in a report that enables the email sender to identify and fix a network, malicious traffic, and legitimate messages that have failed authentication beyond control. It also highlights where everything is going well.