Let’s address the age-old question: What is DMARC?
Ok, maybe it’s not ages old. DMARC is still in its first decade of existence, but that doesn’t make it any less important. In a short amount of time, DMARC has become the gold standard for authenticating email. In fact, 75 percent of inboxes worldwide (5 billion in all) are behind mail gateways that use DMARC to check email authenticity and enforce DMARC policies — and a rapidly growing number of domain owners are deploying DMARC to protect themselves from impersonation.
This infographic paints a high-level picture of Domain-based Message Authentication, Reporting, and Conformance to get you started.