<ul><li>DMARC is a domain-based message authentication protocol that helps email domain owners specify how receiving mail servers should handle emails that fail authentication.</li><li>It combines SPF and DKIM authentication to provide an additional layer of security for preventing email spoofing and improving email deliverability.</li><li>DMARC authentication offers insightful reporting, prevents domain spoofing, enhances email deliverability, and reduces phishing attacks.</li><li>Some key components of DMARC configuration include policy definition, aggregate and forensic reports, alignment mode enforcement, and subdomain policies.</li></ul>

DMARC: A Comprehensive Guide to Email Security and Authentication

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