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Is Email Hosted by StartMail
x402
Is Email Hosted by StartMail is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).
Checks whether a given domain's email is hosted by StartMail by resolving MX records via Cloudflare DoH and matching against StartMail's mail-exchanger patterns.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is the domain's email hosted by startmail? Looks up the MX records (Cloudflare DoH) and matches them against startmail'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 indicating whether the domain's email is hosted by StartMail, along with the full list of resolved MX hosts and which specific MX records matched StartMail's known mail-exchanger patterns.
Example use cases
Pre-sales email provider research
“Before I reach out to leads at mycompany.io, can you tell me if their email is hosted by StartMail? I want to tailor my outreach to their privacy-focused email setup.”
Email migration vendor identification
“We're planning to migrate away from StartMail and I need to confirm that secureinbox.org is still using StartMail as their email host — can you look up their MX records and check?”
Deliverability stack audit
“I'm auditing email deliverability for a list of domains and need to know if newsletter.privacyco.net is routed through StartMail — can you check the MX records and tell me if they match StartMail's patterns?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/email/hosted-by/startmail?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to specifically detect StartMail as the email hosting provider for a domain, particularly for sales intelligence, deliverability research, or migration planning. Prefer this over generic MX lookup tools when you need a definitive yes/no answer keyed to StartMail's specific mail-exchanger signatures. Use sibling endpoints for detecting other email providers.
Side effects
- Domain does not exist or has no MX records — returns no match or an error
- Cloudflare DoH resolution failure — DNS lookup cannot complete
- Domain has MX records but none match StartMail patterns — returns 'no'
- Invalid or malformed domain input — request fails or returns error
- StartMail pattern list may lag behind if StartMail updates their MX infrastructure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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