{"uid":"cap_6r9EOdsthKHjZjHmAUXbk","slug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-eadf6c98","name":"B2A Email Deliverability, MX, SPF & DMARC 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://serp-extract.agentdiet.dev/v1/mx-check)","url":"https://serp-extract.agentdiet.dev/v1/mx-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"},"limit":{"type":"integer","default":20,"maximum":100,"minimum":1,"description":"Maximum number of items to return per page (1-100)"},"cursor":{"type":"string","description":"Opaque pagination cursor for fetching the next page"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"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":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_RhaX7GKOkrgxUBz2-cBoc","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record presence.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — including whether the domain has valid MX, SPF, and DMARC records and whether it's from a disposable provider?","exampleUseCases":[{"title":"CRM lead quality gate","prompt":"Before I import this list of signups into my CRM, can you check if hello@tempmail.io is a real deliverable address or just a throwaway burner email, and confirm whether its domain has MX records set up?"},{"title":"Marketing list hygiene check","prompt":"I'm about to send a newsletter — can you verify that contact@rolebased.org is a legitimate deliverable inbox and not a role address like admin@ or noreply@ that might tank my deliverability?"},{"title":"B2B outreach email screening","prompt":"We're doing cold outreach and I want to confirm that founder@targetstartup.com has valid MX, SPF, and DMARC DNS records so our emails won't bounce — can you run a full deliverability check on it?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain is associated with a known disposable/burner provider, whether it appears to be a role-based account, and the live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and risk assessment for the address.","failureModes":["Invalid or malformed email input returns a syntax error or validation failure","Domain has no MX records, indicating the address is undeliverable","DNS lookup timeout if the domain's nameservers are slow or unresponsive","Disposable provider database may not cover newly created burner services","Role account detection may produce false positives for legitimate role addresses"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checking — specifically when you need live DNS MX/SPF/DMARC verification combined with disposable provider and role account detection in a single call. It is ideal for lead qualification pipelines, signup fraud prevention, and pre-send deliverability checks where a single $0.005 per-call cost is acceptable for high-confidence results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:00.260Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18768445"}