DNS checker · Free tool
Check whether your domain is set up to send.
One lookup reads the SPF, DKIM, DMARC, and MX records your domain publishes, scores each one, and shows what to fix.
- SPF, DKIM and DMARC alignment analysis
- MX routing and mail server discovery
- Actionable fix instructions for every failure
Direct browser query via Google DNS-over-HTTPS. Domain lookups are processed client-side and not saved to application databases.
Check a domain
The domain on your “from” address, or any email address at it.
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Enter a domain to see SPF, DKIM, DMARC, and MX scored, with the fix for anything that fails.