{"uid":"cap_vZcwROvQg846KvQjsnvYH","slug":"is-email-hosted-by-mailfence-bulk-8c24d080","name":"is-email-hosted-by-mailfence-bulk","description":"Bulk is email hosted by mailfence: 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. $0.10 per batch.","url":"https://email.intel.rallylive.ca/bulk/email/hosted-by/mailfence?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_hOOwEFj4CK-HcrZ-4uKAm","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 one concurrent batch to determine whether each domain's email is hosted by Mailfence, returning ordered results with per-item error fields and a failure count.","exampleAgentPrompt":"I have a list of domains — mailfence.com, proton.me, example.org, and 17 others — can you check all of them at once and tell me which ones are hosted by Mailfence?","exampleUseCases":[{"title":"Email provider audit for prospect list","prompt":"I have a list of 20 prospect domains from our CRM export. Can you check all of them at once and tell me which ones use Mailfence to host their email?"},{"title":"Privacy-focused user segmentation","prompt":"We're segmenting our user base by email provider. Check these 15 domains and flag any that are hosted by Mailfence so we can group them separately."},{"title":"Competitive intelligence on email stack","prompt":"I've got a batch of company domains from a recent lead scrape — can you run them all through and identify which ones are running Mailfence as their email host?"}],"resultDescription":"An ordered array of results matching the input domain list, where each item contains a boolean indicating whether the domain's email is hosted by Mailfence, a per-item error field (if the check failed for that domain), and an overall failure count for the batch.","failureModes":["Batch exceeds 20 domains — request rejected or truncated","Invalid domain format in input — per-item error returned","DNS lookup failure for a domain — per-item error field populated, failure count incremented","Network timeout on concurrent checks — partial results with failure count","No input domains provided — validation error returned"],"whenToPreferThis":"Use this endpoint when you have a list of 2–20 domains and need to determine Mailfence email hosting status for all of them in a single call. It processes items concurrently and returns results in input order, making it far more efficient than calling the single-domain endpoint repeatedly. Prefer this over sequential single checks whenever you hold a batch of domains to enrich in a pipeline or agent workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T12:37:35.335Z","isFirstParty":false,"canonicalSlug":"is-email-hosted-by-mailfence-bulk-8c24d080"}