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DNS AAAA Record Lookup for mail Subdomain
x402
DNS AAAA Record Lookup for mail Subdomain is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Looks up the IPv6 (AAAA) DNS record for the mail subdomain of a given domain using Cloudflare DNS over HTTPS, returning existence status, records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
AAAA record of mail.<domain>: looks up the mail host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like mail without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the AAAA record for mail.<domain> exists, the resolved IPv6 address(es), the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN), as answered by Cloudflare DoH.
Example use cases
Email server IPv6 reachability check
“Does mail.shopify.com have an AAAA record? I want to know if their mail server is reachable over IPv6 and what the TTL is.”
Pre-deployment mail server audit
“We're setting up IPv6 for our domain startup.io — can you check whether mail.startup.io already has an AAAA record before we push the new config?”
Domain infrastructure reconnaissance
“I'm investigating the mail infrastructure for competitor.com — can you look up whether mail.competitor.com has an IPv6 AAAA DNS record and report what you find?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/mail/aaaa?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need the IPv6 (AAAA) DNS record for the mail subdomain of a domain, using Cloudflare's DoH resolver. Prefer it over generic DNS tools when you want a quick, targeted existence check for the mail host without enumerating all subdomains. Use it for email infrastructure audits, IPv6 reachability checks, or domain intelligence gathering where Cloudflare's resolver behavior is desired.
Side effects
- Domain does not have a mail subdomain — returns NXDOMAIN or empty records
- Invalid or malformed domain input — may return error or empty response
- Cloudflare DoH service unavailable — upstream DNS resolution failure
- Domain exists but mail subdomain has no AAAA record (only A record) — returns empty AAAA result
- Network timeout contacting Cloudflare DoH endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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