SPF, DKIM & DMARC checker
Inspect the DNS records that authorize senders, sign messages, and define spoofing policy.
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How it works
Review the three authentication layers
SPF, DKIM, and DMARC solve different parts of email authentication. A healthy sending domain normally publishes all three, but DKIM selectors are provider-specific and cannot be discovered exhaustively from DNS alone.
- SPF authorized-sender policy
- Common DKIM selector scan
- DMARC enforcement and reporting policy
- Raw records for configuration review
Use these checks during signup
The API returns allow, review, or block with the reasons behind it.