DKIM, DMARC, and SPF: Why Email Authentication is Critical
Introduction: What are DKIM, DMARC, and SPF? Email authentication is critical for protecting your email from spoofing and phishing attacks. DKIM, DMARC, and SPF are three primary email authentication technologies. DKIM (DomainKeys Identified Mail) is a technology that uses public-key cryptography to verify the sender’s identity of an email message. … Read more