{"uid":"cap_e9L-v3vbW-rX_IUBvy5-K","slug":"sec-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-9b323b93","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://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyz","method":"POST","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_t-pQGgCkfQ8B3GjRDQQ4B","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"sec-intel.agentdiet.dev","brandSlug":"sec-intel-agentdiet-dev-mpp","brandBaseUrl":"https://sec-intel.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 checks to determine deliverability.","exampleAgentPrompt":"Can you check whether john.smith@acmecorp.com is a real, deliverable email address — specifically whether it passes syntax checks, isn't from a disposable provider, and has valid MX, SPF, and DMARC DNS records?","exampleUseCases":[{"title":"Scrubbing SaaS signup leads","prompt":"Before we add this new signup to our CRM, can you verify that alice@tempmail.io isn't a burner address and actually has working MX records so we know emails will reach her?"},{"title":"Outbound sales email validation","prompt":"I'm about to send a cold outreach sequence to cto@startupxyz.com — can you confirm it's syntactically valid, not a role account, and that the domain has proper MX, SPF, and DMARC records set up?"},{"title":"Blocking throwaway registrations","prompt":"A new user just registered with signup@guerrillamail.com — can you check if that's a disposable or burner email provider so we can decide whether to let them through?"}],"resultDescription":"Returns a structured report including: email syntax validity, whether the domain uses a known disposable/burner provider, whether it is a role-based address (e.g. admin@, info@), live DNS MX record lookup results, SPF record presence and content, and DMARC policy record presence — collectively indicating whether the email is likely deliverable and trustworthy.","failureModes":["Invalid or missing email parameter returns a validation error","DNS lookup timeout if the domain's nameservers are unresponsive","Domain does not exist (NXDOMAIN), resulting in no MX records found","SPF or DMARC records absent from DNS, flagged as missing rather than an error","Disposable provider database may not cover every newly created burner domain","Network-level failures may cause transient DNS resolution errors"],"whenToPreferThis":"Choose this endpoint when you need a single call that combines email syntax validation, disposable-provider detection, role-account flagging, and live DNS MX/SPF/DMARC record verification — rather than using separate tools for each check. It is especially well-suited for agent workflows doing lead enrichment, signup fraud prevention, or pre-send deliverability auditing where both syntax and live DNS health matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:34:27.393Z","isFirstParty":false,"canonicalSlug":"sec-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-71294769"}