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Is Email Hosted by Hetzner Mail
x402
Is Email Hosted by Hetzner Mail is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Checks whether a domain's email is hosted by Hetzner Mail by looking up MX records via Cloudflare DoH and matching against Hetzner mail-exchanger patterns, returning yes/no plus matched MX hosts.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is the domain's email hosted by hetzner mail? Looks up the MX records (Cloudflare DoH) and matches them against hetzner-mail'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.
Output
Returns a yes/no boolean indicating whether the domain's email is hosted by Hetzner Mail, along with the full list of MX host records retrieved via Cloudflare DoH and which specific records matched Hetzner's mail-exchanger patterns.
Example use cases
Pre-sales email provider research
“We're reaching out to potential customers who might be on Hetzner Mail — can you check if techstartup.de is using Hetzner for their email hosting?”
Pre-migration Hetzner hosting check
“Before we kick off the email migration project for clientdomain.com, can you verify whether their email is currently hosted by Hetzner Mail so we know what we're migrating from?”
Deliverability audit for a domain
“I'm troubleshooting deliverability issues with invoices@businessexample.at — can you check whether that domain's email is hosted by Hetzner Mail and show me which MX records matched?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/email/hosted-by/hetzner-mail?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to specifically identify whether a single domain's email is hosted by Hetzner Mail, for use cases like sales targeting, pre-migration audits, or deliverability research. Prefer this over generic MX lookup tools when you need a clean yes/no Hetzner detection without building your own pattern-matching logic. For bulk detection across many domains, prefer the sibling bulk endpoint.
Side effects
- Domain does not exist or has no MX records — returns no match with empty MX list
- DNS lookup fails via Cloudflare DoH due to network issues — may return an error or timeout
- Domain has non-standard MX records that are Hetzner-related but not matched by patterns — false negative possible
- Malformed domain input — returns an error or bad-request response
- Hetzner updates its MX patterns and detection becomes stale — potential false negatives
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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