{"uid":"cap_vlrmvOixRUJ9p3S1WT_Ys","slug":"email-provider-detector-by-domain-01b7b00c","name":"Email Provider Detector by Domain","description":"Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, OVH, IONOS...) from its MX and SPF records, plus corporate spam filters and other senders. For B2B sales and audits.","url":"https://api.vextorium.com/proveedor-email-pago?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"dominio":{"type":"string"}}},"responseSchema":{"type":"json","example":{"mx":["alt1.aspmx.l.google.com","alt3.aspmx.l.google.com"],"nota":null,"dominio":"anthropic.com","proveedor":"Google Workspace","recibe_correo":true,"filtro_antispam":null,"otros_detectados":[],"envia_tambien_desde":["_spf.google.com"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fGtksWHS_KCVz8cxTiA08","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Identifies which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, etc.) by analyzing its MX and SPF records, plus corporate spam filters and additional senders.","exampleAgentPrompt":"What email provider does anthropic.com use — is it Google Workspace, Microsoft 365, or something else? Check the MX and SPF records.","exampleUseCases":[{"title":"B2B lead email stack research","prompt":"Before we reach out to salesforce.com, can you check what email provider they're using? I need to know if they're on Google Workspace or Microsoft 365 so we can personalize the outreach."},{"title":"Email deliverability audit","prompt":"We're having delivery issues sending to hubspot.com — can you check what email service they use, whether they have a spam filter in place, and what other senders their SPF record includes?"},{"title":"Competitor email infrastructure check","prompt":"Can you look up what email system our competitor notion.so is running, including any antispam filters or third-party senders they've configured?"}],"resultDescription":"Returns the detected email provider name (e.g. 'Google Workspace', 'Microsoft 365'), the domain queried, a boolean indicating if the domain receives email, the MX record hostnames, a list of SPF-authorized senders, detected spam/corporate filters, any other providers detected, and an optional note.","failureModes":["Domain has no MX records — recibe_correo returns false and proveedor may be null","Domain does not exist or is unreachable — may return error or empty result","Unusual or private MX configurations not matching known providers — proveedor may be unknown or null","Rate limit or payment failure (x402 protocol) — request rejected before DNS lookup","Malformed domain input — API returns validation error"],"whenToPreferThis":"Use this endpoint when you need to identify the email platform behind a specific business domain for B2B sales targeting, deliverability audits, or IT research. It is purpose-built for email provider detection via MX and SPF analysis, returning structured provider names rather than raw DNS data — making it faster and more actionable than generic DNS lookup tools for this specific need.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T18:48:10.021Z","isFirstParty":false,"canonicalSlug":"email-provider-detector-by-domain-01b7b00c"}