{"uid":"cap_UAoPBWqt7QfCvXVbpn2Py","slug":"github-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-54b72862","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/email-validator)","url":"https://github-audit.agentdiet.dev/v1/email-validator?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_8zRU9_O7knafu7nigNZh1","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, and DMARC record checks.","exampleAgentPrompt":"Can you check whether john.doe@acmecorp.com is a real, deliverable email — specifically whether it passes syntax checks, isn't from a disposable or burner provider, and has valid MX, SPF, and DMARC records on the domain?","exampleUseCases":[{"title":"Screening signups for fake emails","prompt":"Before we accept this new user registration, check whether the email they gave us — freestuff123@mailnull.com — is a disposable or burner address, has valid MX records, and would actually be deliverable."},{"title":"Pre-campaign email list hygiene","prompt":"I'm about to send a marketing campaign to leads@bigclient.io — can you verify it's not a role account, confirm the domain has proper MX and SPF records, and tell me whether it's safe to contact?"},{"title":"B2B lead qualification check","prompt":"We just got a lead from someone at techpartner.com using the address support@techpartner.com — can you check whether that's a role account, whether the domain has DMARC and SPF configured, and whether the email is actually deliverable?"}],"resultDescription":"Returns a structured object indicating: email syntax validity, whether the address belongs to a known disposable or burner provider, whether it is a role account (e.g. info@, noreply@), and live DNS lookup results for MX, SPF, and DMARC records — giving an overall deliverability assessment.","failureModes":["Missing or malformed email parameter returns a validation error","DNS lookup timeout if the domain's nameservers are slow or unresponsive","Unknown or very new domains may lack MX/SPF/DMARC records, returned as absent rather than invalid","Disposable provider lists may not include brand-new burner services","Payment failure via x402 returns HTTP 402 and blocks the request"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email check that covers syntax, DNS deliverability (MX), email authentication policy (SPF/DMARC), and disposable/role-account risk — rather than a simple format check or a standalone MX lookup. Especially useful in lead enrichment pipelines, signup fraud prevention, and pre-send email list hygiene workflows where all four signals are needed together.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:58.606Z","isFirstParty":false,"canonicalSlug":"github-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-7517d338"}