A cyber technician is enhancing application security capabilities for corporate email accounts following a breach.

Which of the following leverages encryption features to enable email verification by allowing the sender to sign emails using a digital signature?

answer

Endpoint detection and response $($EDR$)$

DomainKeys Identified Mail $($DKIM$)$

Domain$-$based Message Authentication, Reporting and Conformance

Sender policy framework $($SPF$)$