{"uid":"cap_R8-FGHHrna1sfy5B6CgQk","slug":"defi-yield-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-30a35023","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://defi-yield.agentdiet.dev/v1/email-check)","url":"https://defi-yield.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_q1N__x6EVndC6TcV0ssY3","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"defi-yield.agentdiet.dev","brandSlug":"defi-yield-agentdiet-dev-mpp","brandBaseUrl":"https://defi-yield.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 health.","exampleAgentPrompt":"Can you check whether john.smith@acme.io is a real, deliverable email address — specifically whether it passes syntax checks, isn't a disposable or burner address, and whether the domain has valid MX, SPF, and DMARC DNS records?","exampleUseCases":[{"title":"Scrub leads before CRM import","prompt":"Before I import this list of leads, check whether contact@leads-example.com is a real deliverable address or a disposable/burner email — also tell me if the domain has MX and SPF records set up properly."},{"title":"Detect fake signups at registration","prompt":"A user just signed up with signup123@mailinator.com — can you verify if that's a disposable or burner email and whether it would actually be deliverable, so I can decide whether to block the registration?"},{"title":"Audit supplier contact email quality","prompt":"I need to send an invoice to accounts@new-vendor.biz — can you verify that email is syntactically valid, not a role-account risk, and that their domain has MX and DMARC records configured before I send?"}],"resultDescription":"Returns a structured object indicating whether the email passes syntax validation, whether the domain is associated with a disposable/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 an overall picture of deliverability risk.","failureModes":["Missing or malformed email input returns a 400/validation error","DNS lookup timeouts may result in incomplete MX/SPF/DMARC data","Newly registered domains may have no DNS records yet, appearing undeliverable even if legitimate","Private or internal email domains may not have public MX records","Payment required (HTTP 402) if x402 payment header is missing or insufficient"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checking — specifically when you need live DNS MX/SPF/DMARC verification, disposable provider detection, and role-account flagging in a single call. Prefer it over basic regex validators for CRM hygiene, lead qualification, fraud prevention at signup, or pre-send deliverability audits.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:35:44.979Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-2981faaf"}