DMARC ANALYST
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Protected live DNS tool

Live DMARC domain validator

Look up a domain's DMARC policy and external RUA authorisation, with a detailed standards-aware explanation.

This live tool sends the domain to DMARC Analyst for protected DNS lookups; no account is required.

Enter a domain only, without https://, a path or an email address. The server queries public DNS and does not retain the submitted domain as report data.

Check sender authentication

This validator focuses on the DMARC policy and aggregate-reporting configuration. Use these specialist sister sites when you need to examine the wider authentication setup or test a real message.

Check other sender authentication at AuthProblemTest an email at Auth Email Test