{"uid":"cap_sbxde-qb2Y1Kvss-ffcUk","slug":"arxiv-digest-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-a70077f3","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://arxiv-digest.agentdiet.dev/v1/disposable-email)","url":"https://arxiv-digest.agentdiet.dev/v1/disposable-email?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_6_4vY4HlOxPVIz0Ey8CPP","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"arxiv-digest.agentdiet.dev","brandSlug":"arxiv-digest-agentdiet-dev-mpp","brandBaseUrl":"https://arxiv-digest.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 if john.doe@tempmail.com is a real, deliverable email address or if it's from a disposable provider, and also verify that the domain has valid MX, SPF, and DMARC records?","exampleUseCases":[{"title":"Block burner emails at signup","prompt":"Before I create an account for the user who entered 'signup@guerrillamail.com', check if that email is from a disposable or burner provider and whether the domain has real MX records."},{"title":"Validate outreach list before campaign","prompt":"I'm about to send a cold outreach campaign — can you verify that 'cto@acmecorp.io' is a properly deliverable email with valid MX and SPF records, and that it's not a role address like info@ or noreply@?"},{"title":"Email hygiene for CRM data","prompt":"Run a deliverability check on 'sales@fakecompany.xyz' — I need to know if the syntax is valid, if the domain has live mail servers, and if there are any DMARC or SPF issues before I import it into my CRM."}],"resultDescription":"Returns a structured object indicating whether the email address is syntactically valid, whether the domain belongs to a known disposable or burner email provider, whether the address is a role account (e.g. admin@, noreply@), and whether the domain has live, correctly configured MX, SPF, and DMARC DNS records — giving a comprehensive deliverability and trust assessment.","failureModes":["Missing or malformed email parameter returns a validation error","DNS lookup timeouts may cause MX/SPF/DMARC checks to fail for slow-responding nameservers","Newly registered disposable domains not yet in blocklists may not be flagged","Private or internal email domains may have no public DNS records, causing false negatives","Payment failure via x402 protocol blocks the request"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checks — combining disposable provider detection, role account identification, and live DNS MX/SPF/DMARC verification in a single call. It is especially useful for fraud screening at registration, CRM hygiene, and outbound email deliverability assurance, and suits agents that need structured, multi-signal email trust scoring with per-call micropayment pricing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:57.187Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-b4f35698"}