Hundreds of brands are hijacked by phishing scams every month, costing companies and ultimately their end customers billions. And existing methods to fight phishing like email authentication standards aren't enough to stop the problem. This report introduces a new way marketers can defend themselves against email fraud: by applying Domain-based Message Authentication, Reporting, and Conformance (DMARC). Read this report to understand why existing anti-phishing standards have failed, what DMARC can and cannot do to address these failures, and what marketers need to do to get started with DMARC.