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:
Apr. 28, 2026
Filed:
Sep. 12, 2023
Ca, Inc., San Jose, CA (US);
Dhrubojyoti Biswas, Waterloo, CA;
CA, Inc., San Jose, CA (US);
Abstract
The systems and methods described provide a seamless end-to-end email delivery between secure email clusters without reliance on prior sharing of encryption keys or protocol configurations. The solution can receive a request to transmit an email to a recipient identified by a domain of the recipient. The solution can transmit a first query to a domain name service (DNS) to fetch one or more records corresponding to the domain of the recipient. The one or more records can identify a key service. The solution can receive, from the key service responsive to a second query to the key service, a key for encrypting the email. The solution can encrypt at least a portion of the email based at least on the key and transmit the encrypted email to the recipient.