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Is Email Hosted By Rackspace Email
x402
Is Email Hosted By Rackspace Email is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Checks whether a domain's email is hosted by Rackspace Email by performing an MX record lookup via Cloudflare DoH and matching against Rackspace Email's known mail-exchanger patterns.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is the domain's email hosted by rackspace email? Looks up the MX records (Cloudflare DoH) and matches them against rackspace-email'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 Rackspace Email, along with the full list of MX hosts discovered and which specific hosts matched Rackspace Email's known mail-exchanger patterns.
Example use cases
Sales prospecting email provider check
“Before I reach out to this list of leads, can you tell me which ones at domain techfirm.io are using Rackspace Email? I want to tailor my pitch around their current email setup.”
Pre-migration provider verification
“We're planning to migrate clients to a new email platform — can you confirm whether clientdomain.com is currently hosted on Rackspace Email so we know if they're in scope?”
Deliverability audit for outbound campaigns
“I'm troubleshooting email deliverability issues with partnerbrand.net — can you check if their email is hosted on Rackspace Email so I know what infrastructure I'm dealing with?”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/email/hosted-by/rackspace-email?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, low-cost, single-domain check to determine if email is hosted specifically on Rackspace Email (not Rackspace's transactional or other services). Prefer this over generic MX lookup tools when you need the yes/no Rackspace detection with matched pattern details baked in. For multiple domains, consider the bulk sibling endpoint. For other provider checks, use the corresponding hosted-by endpoints in the same family.
Side effects
- Domain does not exist or has no MX records — returns no match with empty MX list
- Cloudflare DoH lookup failure due to network issues — may return an error or timeout
- Domain uses a Rackspace product not covered by the current MX pattern set — false negative
- Invalid or malformed domain input — may return an error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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