Visualizing the communication between email servers will help you understand what SPF, DKIM, and DMARC do and how these mechanisms work Posted on 2022/01/12 by Carl Robitaille Visualizing the communication between email servers will help you understand what SPF, DKIM, and DMARC do and how these mechanisms work This is awesome. Visualizing the communication between email servers will help you understand what SPF, DKIM, and DMARC do and how these mechanisms work. https://t.co/PZYZovyGrW— nixCraft 🐧 (@nixcraft) January 10, 2022