Patents by Inventor David William FANTHAM

David William FANTHAM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Email security in a multi-tenant email service
    Patent number: 11363060
    Abstract: The technology described herein helps improve email security within a multi-tenant email service. In particular, the technology described herein helps make it more difficult for a first tenant of the email service to impersonate a second tenant of the email service by validating the sending domain before the email leaves the multi-tenant email service. In particular, the technology runs a sending-side source validation on an email. If the source validation fails, the email is still sent, but using a source IP address that will cause the email to fail a receiving-side email authentication tests, such as the sender policy framework (SPF) email authentication test. In contrast, if the source validation passes, the email is sent using a source IP address that will cause the email to pass the receiving-side email authentication tests.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 14, 2022
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: David William Fantham, Puneet Soti, Deepika Gakhar, Gregory Gourevitch, Abhishek Agrawal
  • EMAIL SECURITY IN A MULTI-TENANT EMAIL SERVICE
    Publication number: 20210126942
    Abstract: The technology described herein helps improve email security within a multi-tenant email service. In particular, the technology described herein helps make it more difficult for a first tenant of the email service to impersonate a second tenant of the email service by validating the sending domain before the email leaves the multi-tenant email service. In particular, the technology runs a sending-side source validation on an email. If the source validation fails, the email is still sent, but using a source IP address that will cause the email to fail a receiving-side email authentication tests, such as the sender policy framework (SPF) email authentication test. In contrast, if the source validation passes, the email is sent using a source IP address that will cause the email to pass the receiving-side email authentication tests.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 29, 2021
    Inventors: David William FANTHAM, Puneet SOTI, Deepika GAKHAR, Gregory GOUREVITCH, Abhishek AGRAWAL