{"uid":"cap_AOQlz8Q_5wcQCxYS5PQn1","slug":"agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-fefbce1a","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://agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://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_-l5Q6BuQHaJucepDCgy46","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agentdiet.dev","brandSlug":"agentdiet-dev-mpp","brandBaseUrl":"https://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 presence.","exampleAgentPrompt":"Can you verify whether john.smith@example.com is a real, deliverable email address — check if it passes syntax validation, isn't from a disposable provider, and has working MX, SPF, and DMARC records on the domain?","exampleUseCases":[{"title":"Pre-send email list hygiene","prompt":"Before we send this marketing campaign, check if newsletter-signup@acmecorp.io is a legitimate deliverable email — I want to know if the domain has MX records, whether it's a disposable or role address, and if SPF and DMARC are set up properly."},{"title":"Startup signup fraud prevention","prompt":"A new user just registered with the email temp4839@mailinator.com — can you verify if it's a throwaway burner address or a real deliverable inbox so I can decide whether to let them through?"},{"title":"B2B lead qualification check","prompt":"I have a sales lead who gave me their email as ceo@smallbiz.net — can you check whether that email address is syntactically valid, deliverable, and whether the domain actually has MX and DMARC records configured?"}],"resultDescription":"Returns a structured object indicating whether the email address passes syntax validation, whether the domain is a known disposable/burner provider, whether it is a role account (e.g. info@, admin@), and the live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and trust assessment for the address.","failureModes":["Missing or malformed email parameter returns a validation error","Domain has no MX records — email is undeliverable even if syntax is correct","DNS timeout during live MX/SPF/DMARC lookup may return partial results","Newly registered domains may not yet have propagated DNS records, causing false negatives","Disposable provider list may not cover every newly created throwaway service"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time, multi-signal email check — combining syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC verification — in a single call. Prefer it over basic syntax-only validators when deliverability and email security posture matter, such as before sending campaigns, qualifying leads, or accepting user registrations.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:23.862Z","isFirstParty":false,"canonicalSlug":"agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-cc06e9a4"}