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Is Email Hosted by Hey
x402
Is Email Hosted by Hey 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 Hey (hey.com) by looking up MX records via Cloudflare DoH and matching against Hey's mail-exchanger patterns.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is the domain's email hosted by hey? Looks up the MX records (Cloudflare DoH) and matches them against hey'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 answer on whether the domain's email is hosted by Hey, along with the full list of MX hosts discovered and which specific MX records matched Hey's known mail-exchanger patterns.
Example use cases
Sales prospecting email provider detection
“I'm reaching out to startups and want to know if acmecorp.com uses Hey for their email — can you look up their MX records and tell me if they're a Hey customer?”
Email migration pre-flight check
“Before we start migrating basecamp.com's email, can you confirm whether they're currently hosted on Hey so I know what we're moving away from?”
Deliverability audit for sender domain
“I'm doing a deliverability audit — can you check if hey.com itself is hosted by Hey by looking at their MX records?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/email/hosted-by/hey?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need to detect Hey (hey.com) as an email provider for a domain. It is purpose-built for Hey detection using live MX record lookups via Cloudflare DoH, making it more accurate and current than static provider databases. Prefer it for sales intelligence, email migration planning, or deliverability audits where confirming Hey hosting is the specific question.
Side effects
- Domain does not exist or has no MX records — returns no match with empty MX list
- Cloudflare DoH is temporarily unreachable — lookup fails with an error
- Domain is valid but uses a custom MX setup that partially resembles Hey — may return false negative
- Malformed domain input causes request rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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