{"uid":"cap_RSPB1p8pKvhxM82rGd27L","slug":"polymarket-odds-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-ddbf0e51","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://polymarket-odds.agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://polymarket-odds.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_8wdTwMqDK44eEMSMuoELc","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"polymarket-odds.agentdiet.dev","brandSlug":"polymarket-odds-agentdiet-dev-mpp","brandBaseUrl":"https://polymarket-odds.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 existence.","exampleAgentPrompt":"Can you check if john.doe@example.com is a real, deliverable email address — specifically whether its domain has valid MX records, whether it's from a disposable or burner provider, and if SPF and DMARC records are properly set up?","exampleUseCases":[{"title":"Lead quality check before CRM import","prompt":"Before I import these leads into the CRM, can you verify that contact@acmecorp.io is a real deliverable email — check its MX records, whether it's a disposable address, and if the domain has SPF and DMARC configured?"},{"title":"Fraud detection for new user signup","prompt":"A user just signed up with temp9182@mailnull.com — can you check if that's a burner or disposable email address, and whether it actually has valid MX records behind it?"},{"title":"Outreach list hygiene audit","prompt":"I'm about to send a cold outreach campaign and I need to know if info@startupxyz.com is a role account, whether the domain has working MX records, and if SPF and DMARC are in place before I email them."}],"resultDescription":"Returns a structured object indicating: email syntax validity, whether the domain has live MX records (deliverability), whether the address comes from a known disposable/burner provider, whether it is a role-based account (e.g. admin@, noreply@), and the presence/validity of SPF and DMARC DNS records on the domain.","failureModes":["Invalid or missing email parameter returns an error","DNS lookup timeout for obscure or offline domains","False negatives on newly created disposable providers not yet in blocklists","Role account detection may miss uncommon role prefixes","SPF/DMARC records may be stale if DNS TTL is high"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email health check that combines syntax validation, live DNS MX/SPF/DMARC lookups, and disposable/role-account detection — particularly for B2B lead enrichment, signup fraud prevention, or outreach list hygiene where deliverability confidence matters and you want all checks in one low-cost call ($0.005).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:45.307Z","isFirstParty":false,"canonicalSlug":"polymarket-odds-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-8c3833a0"}