DMARC Policy Checker · free
DMARC policy checker
Enter a domain to see its DMARC policy, get a maturity score (none → quarantine → reject), and a list of next steps to tighten enforcement without breaking legitimate mail.
The DMARC ratcheting ladder
DMARC enforcement comes in three levels: p=none (monitor only), p=quarantine (send suspicious mail to spam), and p=reject (bounce at SMTP). The path to reject should take 30–60 days minimum — you need time at each level to confirm no legitimate mail is being caught.
For a step-by-step on the transition, see our 2026 authentication guide and the DMARC report parsing post.
Need this in production?
The free tool is great for one-off checks. For automated monitoring, alerting, and an API, see the related Postscale product.
See the DMARC Reporting API