{"uid":"cap_BdDkGqO2JQUCx_wtSDG2J","slug":"bulk-mailgun-email-hosting-checker-494c788f","name":"Bulk Mailgun Email Hosting Checker","description":"Bulk is email hosted by mailgun: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.","url":"https://email.intel.rallylive.ca/bulk/email/hosted-by/mailgun?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_s0J2qUTflxojTn0KCpKEq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks up to 20 domains in a single call to determine whether each domain's email is hosted by Mailgun, returning results in input order with per-item errors and a failure count.","exampleAgentPrompt":"I have a list of 15 domains — acme.com, startup.io, and 13 others — can you check all of them at once to see which ones are hosted by Mailgun?","exampleUseCases":[{"title":"Email provider audit for prospect list","prompt":"I've got a list of 18 prospect domains from our CRM — can you check all of them in one go to see which ones are using Mailgun for their email hosting?"},{"title":"Sales targeting by email platform","prompt":"We want to reach out to companies that use Mailgun. Can you check these 20 domains at once and tell me which ones are Mailgun-hosted so we can prioritize them?"},{"title":"Infrastructure compliance review","prompt":"Before we migrate these domains, I need to confirm which of our 12 client domains are currently on Mailgun — can you run them all at once and flag any errors?"}],"resultDescription":"An ordered array of results matching the input domain list, where each item contains a boolean indicating whether the domain is hosted by Mailgun, a per-item error field if the check failed, and an overall failure count for the batch.","failureModes":["Input list exceeds 20 domains — batch size limit exceeded","Invalid or malformed domain names cause per-item errors with error field populated","DNS lookup failures via Cloudflare DoH result in per-item errors rather than whole-batch failure","Payment not accepted or insufficient funds causes 402 response blocking the call","Domains with unusual or missing MX records may return false negatives"],"whenToPreferThis":"Use this endpoint when you have a list of 2–20 domains and need to check Mailgun hosting status for all of them efficiently in a single call. Prefer this over the single-domain endpoint when processing batches to reduce latency and cost. Choose this over generic DNS tools when you specifically need to identify Mailgun-hosted domains with a clean boolean result and error handling per item.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:30:10.925Z","isFirstParty":false,"canonicalSlug":"bulk-mailgun-email-hosting-checker-494c788f"}