{"uid":"cap_sEosvkNT-7gHZIJbY7L7E","slug":"is-email-hosted-by-gmx-e8c73e9f","name":"is-email-hosted-by-gmx","description":"Is the domain's email hosted by gmx? Looks up the MX records (Cloudflare DoH) and matches them against gmx's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.","url":"https://email.intel.rallylive.ca/email/hosted-by/gmx?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8raInpPiwGXNKz2LNMuPx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a domain's email is hosted by GMX by querying MX records via Cloudflare DoH and matching against GMX mail-exchanger patterns, returning yes/no plus matched hosts.","exampleAgentPrompt":"Can you check if the domain 'example.com' has its email hosted by GMX — I need to know whether their MX records match GMX's mail servers?","exampleUseCases":[{"title":"Sales lead email provider qualification","prompt":"Before I reach out to these prospects, can you check if acmecorp.com uses GMX for their email? I want to tailor my pitch based on their current provider."},{"title":"Pre-migration provider audit","prompt":"We're planning to migrate clients off GMX to a new platform — can you confirm whether clientdomain.de is still hosted by GMX so we know who needs migrating?"},{"title":"Deliverability pre-flight check","prompt":"I'm about to send a bulk campaign and want to flag any recipient domains running on GMX since their filters behave differently — can you tell me if newsletter-readers.com is a GMX-hosted domain?"}],"resultDescription":"Returns a yes/no answer indicating whether the domain's email is hosted by GMX, along with the full list of MX hosts discovered via Cloudflare DNS-over-HTTPS and the specific MX records that matched GMX's known mail-exchanger patterns.","failureModes":["Domain does not exist or has no MX records — returns no match with empty host list","DNS lookup timeout via Cloudflare DoH — returns an error or no result","Domain has MX records but none match GMX patterns — returns no with full MX list","Invalid or malformed domain input — returns validation error","Transient network failure reaching Cloudflare DoH — may return error or retry needed"],"whenToPreferThis":"Use this endpoint when you need a fast, definitive yes/no on whether a specific domain uses GMX as its email host, particularly for sales prospecting, deliverability segmentation, or migration planning. Prefer the single-lookup version (this endpoint) for one-off checks or when building a watch/alert workflow; use the bulk variant for batch processing multiple domains at once. This endpoint is ideal when you need the raw MX host data alongside the provider match result.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:40:58.403Z","isFirstParty":false,"canonicalSlug":"is-email-hosted-by-gmx-e8c73e9f"}