{"uid":"cap_0w_ddV3F36ySsg2I84tO5","slug":"x402broker-email-deliverability-dns-verifier-2c96d896","name":"x402broker Email Deliverability & DNS Verifier","description":"Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/email-check)","url":"https://x402broker.com/v1/email-check?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["email"],"properties":{"email":{"type":"string","minLength":1,"description":"Email address to validate for syntax, MX deliverability, and disposable risk"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USD","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":"$0.005/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eMixjQrXp3dhjcnyg1NFv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null},{"uid":"pm_f5Jp5EASHX6cZltX4Lunp","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record checks.","exampleAgentPrompt":"Can you check if john.doe@tempmail.org is a real, deliverable email address — specifically whether it's from a disposable provider, has valid MX records, and passes SPF and DMARC?","exampleUseCases":[{"title":"Signup form disposable email screening","prompt":"Before we let this user register, check if the email they entered — signups@guerrillamail.com — is a disposable or burner address that we should block."},{"title":"Sales outreach deliverability audit","prompt":"I'm about to email a prospect at cfo@acme-corp.io — can you verify that domain has working MX records and proper SPF/DMARC setup so my message won't bounce or land in spam?"},{"title":"Role account detection for personalization","prompt":"Is support@bigcompany.com a role-based email address? I want to know before I send a personalized outreach email to it."}],"resultDescription":"Returns a structured report for the queried email address including: syntax validity, whether the domain uses a known disposable/burner email provider, whether it is a role account (e.g. admin@, info@), live DNS MX record lookup results, SPF record presence and validity, and DMARC policy record status — giving a comprehensive deliverability and legitimacy assessment.","failureModes":["Invalid or malformed email address provided — returns syntax error","DNS lookup timeout or unreachable nameservers — MX/SPF/DMARC fields may be null or flagged as unresolvable","Domain does not exist — all DNS checks fail with NXDOMAIN","Missing required email query parameter — returns 400 bad request","Payment not included or insufficient — returns HTTP 402 payment required"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checking — specifically when you need to combine disposable provider detection, role account flagging, and live DNS record verification (MX, SPF, DMARC) in a single call. Ideal for pre-signup screening, outbound sales qualification, and deliverability auditing. Prefer over basic regex validators or single-purpose MX checkers when you need all signals in one response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:48:21.454Z","isFirstParty":false,"canonicalSlug":"x402broker-email-deliverability-dns-verifier-2c96d896"}