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Playground demo key · api.reefapi.com
post/validate/v1/email1 credit

Validate an email: syntax + live MX (DoH) + disposable-domain + role-account flags.

Working example
Parameters

The email address to validate: RFC-5322-pragmatic syntax + live MX lookup (DNS-over-HTTPS) + disposable-domain + role-account detection.

Whether to perform the live MX/DNS lookup (default true). Set false for a pure offline syntax+disposable check (no network, faster).

request preview
curl -X POST https://api.reefapi.com/validate/v1/email \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"email":"[email protected]"}'

Hit Send to run this endpoint live.