{"uid":"cap_2PezTuhD3LcIv5KImbNHt","slug":"email-deliverability-check-96eac4dc","name":"Email Deliverability Check","description":"","url":"https://x402.professorsausages.com/email-check/check","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gi_q8vJZQy-_mYw-JGnPT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks an email address for deliverability signals including RFC5322 syntax validity, live MX/SPF/DMARC DNS records, and flags for disposable, role-based, free-provider, or unicode addresses","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — I want to know if the domain has MX records, whether it passes SPF and DMARC, and if it's a disposable or role-based address?","exampleUseCases":null,"resultDescription":"Returns a set of deliverability signals for the email address: RFC5322 syntax validity, live MX record presence, SPF and DMARC DNS record status (queried via DoH), and boolean flags indicating whether the address is from a disposable provider, is a role-based address (e.g. info@, support@), is from a free email provider, or contains unicode characters. This is a signals report, not an SMTP send guarantee.","failureModes":["Invalid or malformed email address input returns a syntax error","Domain has no DNS records or is unreachable, MX check returns negative","DoH (DNS-over-HTTPS) resolver temporarily unavailable, DNS checks may fail","Rate limiting or payment failure returns 402 or 429 error","Disposable provider database may not include newly created throwaway domains"],"whenToPreferThis":"Choose this endpoint when you need a multi-signal email deliverability assessment beyond simple regex validation — specifically when you want live DNS checks (MX, SPF, DMARC via DoH) combined with disposable/role/free-provider detection in a single call. Prefer this over simple syntax validators when building sign-up flows, cleaning email lists, or screening leads, and you need to catch throwaway addresses and misconfigured domains before attempting delivery.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:55:21.195Z","isFirstParty":false}