{"uid":"cap_CL7OVUTfTPN2baiHG-gol","slug":"github-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-bfc0fbc5","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://github-audit.agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://github-audit.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_VdHygk0D9aTfiCv8l4IQy","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"github-audit.agentdiet.dev","brandSlug":"github-audit-agentdiet-dev-mpp","brandBaseUrl":"https://github-audit.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 verification.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — specifically whether the domain has valid MX records, isn't a disposable/burner provider, and has SPF and DMARC set up properly?","exampleUseCases":[{"title":"Sign-up fraud prevention check","prompt":"Before I let this user register, can you verify that their email address user@tempmail.io isn't a disposable or burner address, and that it actually has working MX records so we know it can receive mail?"},{"title":"Email campaign list hygiene","prompt":"I have a lead email address marketing@bigcorp.com — can you check if it's a real deliverable address, confirm the domain has MX records, and flag whether it's a role account so I know how to handle it in my outreach?"},{"title":"Domain email infrastructure audit","prompt":"Can you look up the email configuration for the domain startup.io — specifically check if there are valid MX records, whether SPF and DMARC are properly set, and whether the domain is even capable of receiving email?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the provider is disposable or a known burner service, whether the address appears to be a role account (e.g. info@, admin@), and live DNS lookup results for MX records (mail servers), SPF policy, and DMARC policy for the domain — allowing the caller to assess full email deliverability and legitimacy.","failureModes":["Invalid or malformed email input returns a syntax error","Domain with no DNS records returns MX lookup failure","Temporary DNS resolution failures may return inconclusive deliverability status","Payment failure (HTTP 402) if USDC micropayment is not provided","Unknown or very new domains may have incomplete SPF/DMARC data"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email validation covering syntax, DNS infrastructure (MX/SPF/DMARC), disposable provider detection, and role account flagging — especially in agentic or automated pipelines that require micropayment-native (x402) API access. Prefer this over basic regex-only validators when deliverability confidence and fraud prevention are important, or when you need live DNS verification rather than cached data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:01.359Z","isFirstParty":false,"canonicalSlug":"github-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-7517d338"}