DMARC
Domain-based Message Authentication, Reporting and Conformance. A DNS policy that stacks on top of SPF and DKIM, telling receivers what to do (none, quarantine, reject) on failure, and where to send aggregate (rua) and forensic (ruf) reports.
Domain-based Message Authentication, Reporting and Conformance. A DNS policy that stacks on top of SPF and DKIM, telling receivers what to do (none, quarantine, reject) on failure, and where to send aggregate (rua) and forensic (ruf) reports.
Practice with mock tests, learn from structured notes, and get your questions answered by a global forensic community, all in one place.