{"uid":"cap_Lt2_0RK309PLnUoqPDx4n","slug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-3896ec6e","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/email-check)","url":"https://serp-extract.agentdiet.dev/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"},"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_hIejG5IKYdfsx-kNSmskK","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 checks.","exampleAgentPrompt":"Can you check whether john.doe@tempmail.org is a real, deliverable email — specifically whether it has valid MX records, passes SPF and DMARC checks, and whether it looks like a disposable or burner address?","exampleUseCases":[{"title":"Screen signup emails for fake accounts","prompt":"Before I create an account for user registration, can you verify that jane.smith@guerrillamail.com is a legitimate email — check whether it's a disposable burner address and whether its domain actually has working MX records?"},{"title":"Validate B2B lead contact email","prompt":"I have a sales lead with contact email ceo@acmecorp.io — can you verify it's a real deliverable address by checking the MX, SPF, and DMARC DNS records, and confirm it's not a role account like info@ or noreply@?"},{"title":"Audit mailing list before email campaign","prompt":"I'm about to send a marketing email to unsubscribe@newsletter.example.com — can you check if this address is deliverable, whether the domain has proper SPF and DMARC records, and flag it if it looks like a role or disposable account?"}],"resultDescription":"Returns a structured object indicating: whether the email syntax is valid, whether the domain is associated with a known disposable or burner provider, whether the address appears to be a role account (e.g. info@, support@), whether live DNS MX records exist and are resolvable, and whether SPF and DMARC records are present and well-formed on the domain.","failureModes":["Missing or malformed email parameter returns a 400-level error","DNS lookup timeouts may cause MX/SPF/DMARC checks to be inconclusive","Private or internal domains with no public DNS records may return false negatives","Newly registered domains may lack SPF/DMARC records even if legitimate","Disposable provider databases may not cover all burner services, leading to missed detections"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-layer email validation that goes beyond simple syntax checks — specifically when you need live DNS MX record resolution, SPF and DMARC policy verification, and disposable/role-account detection in a single call. Prefer this over basic regex validators when building user signup flows, cleaning B2B lead lists, or qualifying contacts before cold outreach.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:16.966Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18768445"}