DMARCguard

DMARCguard is a DMARC monitoring and enforcement platform that helps organizations protect their domains from email spoofing. It monitors nine email authentication protocols (SPF, DKIM, DMARC, DANE, and others) from a single dashboard, providing compliance scoring and step-by-step remediation guidance to move domains from monitoring (p=none) through quarantine to full rejection (p=reject). The platform identifies authorized sending sources by name rather than raw IPs, helping teams understand exactly who is sending mail on their behalf.

Designed for security and compliance teams, DMARCguard addresses requirements from Google, Microsoft, Yahoo, PCI DSS v4.0.1, and NIS2 regulations. The team also maintains Parse DMARC, an open-source DMARC aggregate report parser built with Go, which the material indicates was created using Claude.