SPF, DMARC and DKIM: The Email Security Triad
SPF, DMARC and DKIM: The Email Security Triad In the world of cybersecurity, emails often represent the first point of attack for phishing and spam attacks. To protect our systems and users, it’s essential to understand and properly implement email authentication protocols: SPF, DMARC, and DKIM. These three protocols form the email security triad and work together to ensure the integrity and authenticity of electronic communications. What is SPF (Sender Policy Framework)? Definition SPF (Sender Policy Framework) is an email authentication protocol that allows domain owners to specify which servers can send emails on behalf of that domain. It works like a whitelist that identifies servers authorized to send emails for a domain. ...