{"uid":"cap_9OJbRqqlHIsqgOyZBzRhI","slug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-13655da4","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://workflows.agentdiet.dev/v1/mx-deliverability-verifier)","url":"https://workflows.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_pCYG01V9t6e5xUtRgWTcG","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.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 to assess deliverability.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email — I want to know if the domain has valid MX records, whether it's from a disposable provider, and if SPF and DMARC are configured?","exampleUseCases":[{"title":"Screening sign-up emails for burner accounts","prompt":"A new user just registered with the email temp9821@mailnull.com — can you verify if this is a disposable or burner email address and whether it has working MX records before I activate their account?"},{"title":"Pre-send deliverability audit for outreach list","prompt":"Before I send my sales outreach campaign, can you check whether contact@prospectcompany.io is actually deliverable — I need to know if the MX records exist and if the domain has SPF and DMARC set up?"},{"title":"Lead quality check for CRM enrichment","prompt":"I just scraped a lead with the email noreply@bigcorp.com — can you tell me if this looks like a role account or a real deliverable inbox, and whether the domain's DNS email records check out?"}],"resultDescription":"Returns a structured report indicating whether the email syntax is valid, whether the domain is associated with a known disposable/burner provider, whether the address appears to be a role account (e.g. info@, noreply@), and the live DNS status of MX, SPF, and DMARC records — collectively indicating whether the email is likely deliverable.","failureModes":["Missing or malformed email address parameter returns a validation error","DNS lookup timeout if the domain's nameservers are unresponsive","Domain with no MX records returns deliverability failure","Unknown or novel disposable provider may not be flagged","Rate limiting or payment failure (HTTP 402) if micropayment is not settled"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checking — specifically when you need live DNS MX/SPF/DMARC verification combined with disposable provider detection and role account identification in a single call. Ideal for pre-campaign list hygiene, sign-up fraud prevention, and CRM lead quality scoring.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:27.696Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-9ae3af34"}