How to Set Up SPF, DKIM, and DMARC Records for Email Authentication
Introduction Email authentication is essential for ensuring secure and trustworthy communication. It protects domains from spoofing, phishing, and spam by allowing receiving mail servers to verify that messages are genuinely from the stated sender. Three key technologies are used in modern email authentication frameworks: SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based