DMARC is a critical email security protocol that enforces policies around email authentication, ensuring alignment between SPF, DKIM, and 'From' header domains to combat phishing attacks; its ability to request aggregated and forensic reports provides deep email security insights; the enforcement by Google and Yahoo highlights the importance of DMARC in minimizing spoofing, limiting spam, and enhancing email security; DMARC assists organizations in reducing spam, spoofing, and domain impersonation, ultimately enhancing cyber resilience and brand protection; the requirement for identifier alignment in DMARC urges organizations to gradually move towards the 'p=reject' state for optimal security while ensuring minimal loss to productivity; DMARC also offers advantages in easy unsubscribes and ensuring only wanted emails are sent, contributing significantly to brand protection and reducing email risks.
https://www.tripwire.com/state-of-security/dmarc-next-step-email-hygiene-and-security