Understanding SPF, DKIM, and DMARC: A Simple Guide Email security is a key part of internet communication. But what are SPF, DKIM, and DMARC, and how do they work? This guide will explain it all in simple terms to make these concepts clearer. Table of Contents What Is This Guide For and Why Bother? Why Choose This Guide? What This Guide Is Not For SPF, DKIM, and DMARC: Simplified Real World Examples of where SPF, DKIM, and DMARC are used Now I Know These Things, What's Next? Checking Your SPF, D...