{"uid":"cap_rpYGtuFF888ypkR1PAD1B","slug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-af408b44","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://workflows.agentdiet.dev/v1/mx-check)","url":"https://workflows.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"}}},"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_IwksR0RX-erMB9zH-II2e","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.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 — specifically whether it passes syntax checks, isn't from a disposable provider, and has valid MX, SPF, and DMARC DNS records?","exampleUseCases":[{"title":"Lead list email validation","prompt":"Before we import these leads into our CRM, can you verify that jane.smith@acmecorp.com is a legitimate, deliverable email — not a burner address or role account — and that the domain has proper MX and SPF records set up?"},{"title":"Signup fraud detection","prompt":"A new user just registered with the email temp4829@mailinator.com — can you check if it's a disposable or burner email address so we can decide whether to block the signup?"},{"title":"Cold outreach domain health check","prompt":"We're about to send a cold outreach campaign to contacts at techstartup.io — can you verify that support@techstartup.io has working MX records and proper DMARC and SPF configuration so our emails won't bounce?"}],"resultDescription":"Returns a structured object indicating whether the email passed syntax validation, whether the domain belongs to a known disposable or burner provider, whether the address is a role account (e.g. info@, admin@), and the live DNS status of MX, SPF, and DMARC records for the email's domain, giving a comprehensive deliverability picture.","failureModes":["Missing or malformed email parameter returns a validation error","Domains with no public DNS records may return MX/SPF/DMARC as absent rather than invalid","Temporary DNS timeouts may cause inconclusive MX lookup results","Very new or private domains may not have SPF/DMARC configured, flagged as missing records","Rate limiting or payment failure (x402) may block repeated calls"],"whenToPreferThis":"Choose this endpoint when you need a combined, real-time check of email syntax, disposable provider detection, role account identification, and live DNS MX/SPF/DMARC verification in a single API call — particularly useful for lead enrichment pipelines, signup validation, or outbound email campaign hygiene where you need to confirm both the address format and the domain's mail infrastructure before sending.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:48:55.678Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-9ae3af34"}