{"uid":"cap_imWWw0oBfV1mDRlCTi4ot","slug":"agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-72fde887","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://agentdiet.dev/v1/email-check)","url":"https://agentdiet.dev/v1/email-check?utm_source=zero.xyz","method":"POST","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_nYm-6TFGktMcbUhkEkckK","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agentdiet.dev","brandSlug":"agentdiet-dev-mpp","brandBaseUrl":"https://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@example.com is a real, deliverable email — specifically if it has valid MX records, passes SPF and DMARC, and isn't from a disposable or burner provider?","exampleUseCases":[{"title":"Pre-signup email fraud screening","prompt":"Before I let this user sign up with the email they provided — alerts2024@tempmail.io — can you check if it's a real deliverable address or a throwaway burner account?"},{"title":"B2B lead list email hygiene","prompt":"I have a lead I want to reach out to: cto@acmecorp.com — can you verify that address has working MX records, valid SPF and DMARC, and isn't a role account like info@ that might get ignored?"},{"title":"Email campaign deliverability audit","prompt":"Before I send our newsletter to newsletter-bounces@clientdomain.net, can you check if that domain has proper MX, SPF, and DMARC records set up so our emails won't bounce or get flagged?"}],"resultDescription":"Returns a structured object indicating: email syntax validity, whether the domain uses a known disposable/burner provider, whether the address is a role account (e.g. admin@, info@), live DNS MX record presence and values, SPF record presence and content, and DMARC policy presence and configuration — giving an overall deliverability assessment.","failureModes":["Malformed or empty email input returns a validation error","DNS lookup timeout if the domain's nameservers are slow or unresponsive","Domain does not exist — no MX records found, marked as undeliverable","Rate limiting if too many requests are sent without idempotency keys","Disposable provider list may not cover newly created burner domains","SPF/DMARC records may be absent even for legitimate domains, causing false negatives"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-signal email validation that goes beyond syntax checking — specifically when you need live DNS MX record resolution combined with SPF/DMARC policy checks and disposable provider detection in a single call. Prefer this over simple regex validators or single-signal checkers when building user onboarding flows, lead enrichment pipelines, or pre-send campaign hygiene checks where deliverability confidence matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:15.126Z","isFirstParty":false,"canonicalSlug":"agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-cc06e9a4"}