{"slug":"agent-utils-x402-production-revenue-agent-jw-workers-dev-v1-77314b","title":"Email authentication DNS audit for a domain or email address","host":"agent-utils-x402-production.revenue-agent-jw.workers.dev","method":"GET","resource":"https://agent-utils-x402-production.revenue-agent-jw.workers.dev/v1/dns/email-auth","category":"code","description":"Email authentication DNS audit for a domain or email address: SPF with recursive 10-lookup count and all qualifier, DMARC policy, pct and report addresses, DKIM selector probe, MTA-STS with policy file, TLS-RPT, BIMI and MX. Useful for deliverability checks, Google/Yahoo bulk-sender readiness and sp","price_listed":0.002,"price_asked":0.002,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":54,"reported_calls_30d":0,"reported_payers_30d":0,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"domain":"paypal.com"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"domain":{"description":"domain or email address, e.g. paypal.com","type":"string"},"selectors":{"description":"optional comma-separated DKIM selectors to probe (max 12); default probes 12 common ones","type":"string"}},"required":["domain"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-11-04","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.002,"price_match":true,"latency_ms":54,"error":null}],"description_full":"Email authentication DNS audit for a domain or email address: SPF with recursive 10-lookup count and all qualifier, DMARC policy, pct and report addresses, DKIM selector probe, MTA-STS with policy file, TLS-RPT, BIMI and MX. Useful for deliverability checks, Google/Yahoo bulk-sender readiness and spoofing risk. Returns grade A-F, score, spoofable flag, parsed records and plain-language issues. Errors: 400 invalid domain, 404 NXDOMAIN.","last_updated":"2026-11-04T16:10:09.371Z","schemes":["exact"]}