{"uid":"cap_sz780KC3W7_Irq4OtgxJC","slug":"arxiv-digest-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-3bcbab9e","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":"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_dZlraivZn9ICYix812L7t","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/DMARC record checks to assess deliverability risk.","exampleAgentPrompt":"Can you check whether john.doe@tempmail.com is a real, deliverable email address — specifically if it's from a disposable provider, whether it passes MX/SPF/DMARC checks, and if it's a role account?","exampleUseCases":[{"title":"SaaS sign-up fraud screening","prompt":"Before I activate this new account, can you verify that the sign-up email newsletter@guerrillamail.com is not a disposable or burner address and that its domain actually has valid MX records?"},{"title":"B2B lead list email hygiene","prompt":"I have a lead I want to reach out to — can you check if contact@acmecorp.io is a real deliverable address, confirm it's not a role account, and tell me if the domain has proper SPF and DMARC records set up?"},{"title":"Email campaign pre-send validation","prompt":"Before I send our campaign, check whether support@yopmail.com should be scrubbed from our list — is it disposable, does it have working MX records, and does it pass DMARC?"}],"resultDescription":"Returns a structured object indicating: email syntax validity, whether the domain belongs to a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), live DNS MX record presence and values, SPF record existence and content, and DMARC policy record status — collectively indicating deliverability risk.","failureModes":["Malformed or missing email field returns a validation error","DNS lookup timeouts may cause MX/SPF/DMARC checks to return inconclusive results","Unknown or brand-new disposable providers may not be flagged if not yet in the blocklist","Non-existent TLDs or purely syntactically invalid emails may return early without DNS checks","Payment failure via x402 results in 402 response without processing"],"whenToPreferThis":"Choose this endpoint when you need a combined, single-call check covering syntax, disposable domain detection, role account identification, and live DNS MX/SPF/DMARC validation — especially in B2B lead enrichment, sign-up fraud prevention, or email campaign hygiene workflows where you want all deliverability signals in one response without stitching multiple DNS tools together.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:31:30.980Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-b4f35698"}