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Bulk Proton Mail Hosting Checker
x402
Bulk Proton Mail Hosting Checker is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-24).
Checks up to 20 domains at once to determine whether each domain's email is hosted by Proton Mail, returning results in input order with per-item error fields.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk is email hosted by proton mail: 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.
Output
An ordered array of results (one per input domain) indicating whether each domain's email is hosted by Proton Mail, plus a per-item error field for any that failed, and an aggregate failure count for the batch.
Example use cases
Sales lead email provider screening
“I've got a list of 18 prospect domains from our CRM — can you batch check which ones are using Proton Mail for their email hosting so I can flag the privacy-conscious ones?”
Security team provider audit
“We need to audit our vendor list for email hosting providers — can you check these 20 domains all at once and tell me which ones are on Proton Mail, including any that error out?”
Competitive research domain classification
“I'm researching privacy-focused companies and have 12 domains to check — can you bulk verify which of them are hosted on Proton Mail and give me the results in the same order I give them to you?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/bulk/email/hosted-by/proton-mail?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a list of 2–20 domains and need to check Proton Mail hosting for all of them efficiently in a single call. It processes items concurrently and preserves input order, making it ideal for bulk enrichment pipelines, CRM data augmentation, or security audits. Prefer the single-domain endpoint only when checking one domain at a time.
Side effects
- More than 20 domains submitted — batch limit exceeded
- Invalid or malformed domain entries cause per-item errors without failing the whole batch
- Network or DNS resolution failures for individual domains populate the per-item error field
- All items fail — full failure count returned with empty or all-errored result array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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