Domain-based Message Authentication, Reporting & Conformance i.e. DMARC, it protects your organization against email threats.
It builds on the widely deployed SPF and DKIM protocols, adding linkage to the author (“From:”) domain name, published policies for recipient handling of authentication failures, and reporting from receivers to senders, to improve and monitor protection of the domain from fraudulent email.
DMARC is a standard to provide secure email experience.
Visit our blog for more information: Protect your domain’s reputation with DMARC