DMARC (Domain-based Message Authentication, Reporting, and Conformance) and DKIM (DomainKeys Identified Mail) are crucial to email security. For comprehensive email security, both of these email authentication protocols must be incorporated. DKIM adds digital signatures to emails so that sender verification and message integrity can be ensured. DMARC prevents email spoofing and phishing by verifying the authenticity of the sender’s domain. The combination protects against phishing, enhances brand reputation, aids regulatory compliance, and reduces false positives. Fortifying email security in the digital age requires understanding and implementing DMARC and DKIM.