{"uid":"cap_Ue8Xy3qHCZcvaDzlK9Jto","slug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-25b84ec0","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/email)","url":"https://workflows.agentdiet.dev/v1/email?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_QS_LEaDMoAyZdU3yfw9oQ","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 existence and configuration.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — specifically whether the domain has valid MX records, passes SPF and DMARC checks, and isn't a disposable or role-based address?","exampleUseCases":[{"title":"Block throwaway emails at signup","prompt":"Before we add this new user to our mailing list, check if user@mailinator.com is a disposable or burner email address — and whether the domain even has working MX records."},{"title":"Pre-send deliverability audit","prompt":"We're about to send a campaign to contact@startup.io — can you verify that domain has valid MX records and proper SPF and DMARC configuration so our emails won't bounce or get flagged?"},{"title":"CRM lead email hygiene","prompt":"I have a lead who gave us the email info@bigcorp.com — can you tell me if it's a real deliverable address, whether it's a role account, and if the domain's email authentication records look legitimate?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the provider is a known disposable/burner service, whether the address is a role account (e.g. info@, admin@), and live DNS lookup results including presence and configuration of MX, SPF, and DMARC records for the domain.","failureModes":["Invalid or malformed email input returns a syntax error response","DNS lookup timeout or failure if the domain is unreachable or DNS is slow","Missing MX/SPF/DMARC records returned as absent rather than an error","Unknown or novel disposable providers may not be flagged if not in the provider database","Ambiguous role-account detection for non-standard role prefixes"],"whenToPreferThis":"Choose this endpoint when you need a combined, single-call check covering syntax validation, DNS MX/SPF/DMARC live lookup, disposable provider detection, and role-account flagging — rather than calling separate DNS or email validation services individually. Ideal for fraud prevention at signup, pre-send list hygiene, and CRM lead qualification. Pay-per-call x402 micropayment model makes it suitable for on-demand single-address checks without a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:27.612Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-9ae3af34"}