implementing-dmarc-dkim-spf-email-security
mukul975/Anthropic-Cybersecurity-Skills
This guide details the implementation of the three core email authentication protocols: SPF, DKIM, and DMARC. By configuring these DNS records, users can prevent domain spoofing, ensure message integrity, and define strict policies (quarantine/reject) for unauthenticated emails, drastically reducing exposure to phishing and spoofing attacks.