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Returns an A–F grade, a `spoofable` flag, the parsed DMARC policy and SPF qualifier, and specific misconfiguration issues. 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Returns an A–F grade, a `spoofable` flag, the parsed DMARC policy and SPF qualifier, and specific misconfiguration issues. Use to judge a sender domain before trusting an email, or to confirm your own outreach domain won't be silently rejected by Gmail/Yahoo/Microsoft's 2026 authentication rules.","bazaar_extension":{"info":{"input":{"type":"http","method":"GET","queryParams":{"domain":"example.com"}},"output":{"type":"json","example":{"spf":{"present":true,"qualifier":"~all"},"dmarc":{"policy":"none","present":true},"grade":"C","domain":"example.com","spoofable":true}}},"schema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Sender domain or email address to grade (e.g. example.com or user@example.com)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}}},"accepted_requirements":[{"raw":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xC1FE5Ce97fB6038527D9660cF290b716a264e874","amount":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":"0xC1FE5Ce97fB6038527D9660cF290b716a264e874","scheme":"exact","network":"eip155:8453","amountAtomic":"3000"}],"bazaar_compatible":true,"bazaar_validated_at":"2026-09-14 16:30:16.715+00","bazaar_validation_error":null},"sonar_metrics":{"score":0.6576,"uptime":0.9,"paid_success_rate":0,"valid_result_rate":null,"latency_p50":646,"latency_p90":4067,"price_drift_pct":0},"cdp_indexed":false,"confidence":"high"}