Review categories instead of relying on one score
Email security health brings multiple public checks together, such as DMARC, SPF, DKIM and transport security. Each category can have different setup and operational requirements.
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Free public checker
Email security health checker
Run an overall public check of email authentication and transport security for a domain.
Your result will appear here.
Run the check to see structured findings, severity, evidence and next steps from the public diagnostics API.
The details
Review categories instead of relying on one score
Use findings as a checklist
A public DNS check cannot see private report history, every sending source or a provider’s internal signing configuration. Treat findings as a starting point for investigation.
A result is a point-in-time check
DNS can vary by resolver and change over time. Verify important changes with your DNS provider and mail platform. Public DNS checks cannot see every private report or sending configuration.
Explore MailConfig ProFrequently asked questions
What does the Email security health checker do?
Run an overall public check of email authentication and transport security for a domain.
Do I need an account?
No. This public tool is available without registration.