{"uid":"cap_lsSdxiY2a1v9AKPX0LHRv","slug":"domain-intel-mx-mail-policy-intelligence-combell-add3ae74","name":"Domain Intel — MX/Mail Policy Intelligence (Combell)","description":"Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.","url":"https://dns.halowerk.com/domain/articles/mx-combell?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","maxLength":253},"baseline":{"type":"object","required":["domain","observed_at","records"],"properties":{"domain":{"type":"string","maxLength":253},"records":{"type":"array","items":{"type":"object","required":["exchange","priority"],"properties":{"exchange":{"type":"string","maxLength":254},"priority":{"type":"integer","maximum":65535,"minimum":0}},"additionalProperties":false},"maxItems":50},"observed_at":{"type":"string","maxLength":40}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.009","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_k_mTOKR8rgjfmFIiQA3uH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up and returns WHOIS, DNS, MX mail policy, TLS certificate, and subdomain data for a given domain, with optional baseline comparison for mail records.","exampleAgentPrompt":"Pull the full domain intelligence report for example.com — I want the WHOIS, DNS, MX mail policy, TLS certificate details, and any subdomains you can find.","exampleUseCases":[{"title":"Email deliverability audit for a domain","prompt":"Check the mail policy setup for acmecorp.com — I need to see its MX records, SPF, DKIM, and DMARC configuration to figure out why our emails are bouncing."},{"title":"MX record change detection","prompt":"Look up the current MX records for clientdomain.io and compare them against my baseline: mx1.combell.net at priority 10 and mx2.combell.net at priority 20, last observed on 2024-06-01T12:00:00Z — tell me if anything has changed."},{"title":"Domain infrastructure investigation","prompt":"Give me a full intelligence report on suspiciousdomain.net — WHOIS ownership info, all DNS records, subdomains, and TLS certificate details so I can assess if it's impersonating us."}],"resultDescription":"Returns a structured intelligence bundle for the queried domain including WHOIS registration data, DNS record set, MX mail exchange records with priorities, mail policy details (SPF/DKIM/DMARC), TLS certificate metadata, and discovered subdomains. If a baseline is provided, may indicate changes relative to that baseline.","failureModes":["Invalid or malformed domain name returns validation error","Domain not found or unresolvable returns empty or error response","Baseline schema mismatch (missing required fields) causes request rejection","Rate limiting or payment failure via x402 protocol returns 402 error","Timeout if upstream DNS/WHOIS services are slow to respond"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, pay-per-call domain intelligence report without API key registration. Ideal for one-off domain audits, automated security investigations, email infrastructure verification, or MX record change detection — especially when you want WHOIS + DNS + TLS + subdomains in a single call billed in USDC via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:14.911Z","isFirstParty":false,"canonicalSlug":"domain-intel-mx-mail-policy-intelligence-combell-add3ae74"}