{"uid":"cap_gGBpgKenX3x6woX-tvPjZ","slug":"mesh-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-f7863447","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://mesh.agentdiet.dev/v1/mx-check)","url":"https://mesh.agentdiet.dev/v1/mx-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_xJ3zXx8e3KQBS4_IHSUtp","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mesh.agentdiet.dev","brandSlug":"mesh-agentdiet-dev-mpp","brandBaseUrl":"https://mesh.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's a disposable provider, has valid MX records, and passes SPF and DMARC checks?","exampleUseCases":[{"title":"Lead form email gating","prompt":"Before we add this signup to our CRM, check if the email 'freestuff123@mailinator.com' is a real deliverable address or a throwaway burner — I also want to know if it's a role account."},{"title":"Pre-send campaign email hygiene","prompt":"I have a new subscriber email 'newsletter@corporateclient.io' — can you verify it has working MX records and that the domain has SPF and DMARC set up before we send them our onboarding sequence?"},{"title":"SaaS signup fraud detection","prompt":"A user just registered with 'admin@tempmail.org' — is that a disposable provider or a role account we should flag? Also check if the domain even has MX records set up."}],"resultDescription":"Returns a structured object indicating: email syntax validity, whether the domain belongs to a known disposable/burner provider, whether the local part is a role-based account (e.g. support, admin, noreply), and live DNS lookup results for MX records (with hostnames/priorities), SPF record presence and content, and DMARC record presence and policy — giving a holistic deliverability and trust assessment for the address.","failureModes":["Invalid or malformed email string causes syntax validation failure with no DNS lookup performed","Domain has no MX records — returns valid syntax but undeliverable status","DNS timeout or resolution failure for the domain results in inconclusive MX/SPF/DMARC fields","Payment not attached or insufficient — HTTP 402 response blocking the call","Rate limiting or network errors from the upstream DNS resolver causing intermittent failures"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email health check covering syntax, DNS deliverability, disposable provider detection, role account identification, and SPF/DMARC policy verification — especially in B2B lead enrichment, SaaS signup flows, or pre-campaign list hygiene where false positives from burner addresses are costly. Prefer it over simple regex-only validators when live DNS confirmation is required, and over domain-only DNS tools when you need email-address-level analysis including local-part role detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:36:01.816Z","isFirstParty":false,"canonicalSlug":"mesh-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-59ba9778"}