{"uid":"cap_E4D9zacSLhMOdwLfsiNU5","slug":"mcp-security-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-87cfc270","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://mcp-security.agentdiet.dev/v1/email-verify)","url":"https://mcp-security.agentdiet.dev/v1/email-verify?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_9E7Z1PeN9Iln6Wrjfla-P","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.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 verify whether john.doe@example.com is a real, deliverable email — check if it's from a disposable provider, whether it's a role account, and whether the domain has valid MX, SPF, and DMARC records?","exampleUseCases":[{"title":"SaaS signup fraud prevention","prompt":"Before activating this new account, verify that signup@tempmail.org isn't a disposable or burner email and that the domain actually has working MX records — flag it if it looks sketchy."},{"title":"B2B lead list hygiene","prompt":"I have a lead whose email is cfo@acmecorp.com — can you check if it's a real deliverable address with valid MX and DMARC records, and whether it's a role account, before we add it to our outreach sequence?"},{"title":"Cold email domain audit","prompt":"Before I send a campaign to contacts at partnerdomain.io, verify that the domain has proper MX, SPF, and DMARC DNS records configured so my emails won't bounce or get flagged as spam."}],"resultDescription":"Returns a structured JSON object including: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, support@), live DNS lookup results for MX records (mail server hostnames), SPF record presence and value, and DMARC policy record — giving a full deliverability and trust assessment for the email address.","failureModes":["Invalid or malformed email address provided — likely returns a syntax error or validation failure","DNS lookup timeout if the domain is unreachable or slow to respond","Domain does not exist (NXDOMAIN), resulting in no MX/SPF/DMARC data","Payment failure via x402 protocol if USDC balance is insufficient","Rate limiting if too many requests are made in a short window"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple regex 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 lightweight syntax-only validators when deliverability assurance matters, such as before CRM ingestion, email campaigns, or user onboarding flows where fake or undeliverable emails cause downstream costs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:54.018Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-87cfc270"}