{"uid":"cap_TwERsgkqc0QanSjFZ_7T5","slug":"sec-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-443a34b2","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://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier?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_mYjKwJR7QOXjaZSOesR-1","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"sec-intel.agentdiet.dev","brandSlug":"sec-intel-agentdiet-dev-mpp","brandBaseUrl":"https://sec-intel.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record presence.","exampleAgentPrompt":"Can you check if john.doe@example.com is a real, deliverable email address — specifically whether it's from a disposable provider, has valid MX records, and whether the domain has SPF and DMARC set up?","exampleUseCases":[{"title":"Lead form email quality check","prompt":"Before we add this signup to our CRM, can you verify that sarah.jones@tempmail.org is a legitimate email — not a burner or role account — and that the domain actually has mail servers configured?"},{"title":"Pre-send campaign email validation","prompt":"We're about to send a campaign to a list of addresses. Can you check whether newsletters@bigcorp.com is deliverable, whether it's a role account, and whether bigcorp.com has SPF and DMARC records in place?"},{"title":"Fraud detection for new user registration","prompt":"A new user just signed up with admin@guerrillamail.com — can you check if that's a disposable or throwaway email address and whether the domain has valid MX records?"}],"resultDescription":"Returns a structured object indicating whether the email passes syntax checks, whether the domain is a known disposable/burner provider, whether it's a role-based account (e.g. info@, noreply@), and the live DNS status of the domain's MX, SPF, and DMARC records — giving an overall deliverability assessment.","failureModes":["Missing or malformed email parameter returns a validation error","DNS lookup timeout for domains with slow or unresponsive nameservers","Unknown or newly registered domains may have incomplete DNS data","Disposable provider lists may not cover very new burner services","Rate limiting or payment failure (402) if USDC microtransaction is not settled"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, live email deliverability check that goes beyond simple syntax validation — especially when you need disposable provider detection, role account flagging, and real-time DNS MX/SPF/DMARC verification in a single call. Prefer this over generic regex validators when building fraud-resistant signup flows, CRM hygiene pipelines, or pre-send email campaign checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:35:17.992Z","isFirstParty":false,"canonicalSlug":"sec-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-71294769"}