# dns-aaaa-webmail-subdomain

> dns-aaaa-webmail-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 2026-10-22).

Looks up the AAAA (IPv6) DNS record for the webmail subdomain of a given domain via Cloudflare DNS over HTTPS and reports existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/webmail/aaaa?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-aaaa-webmail-subdomain-8fa91406
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_syQJK-czSiIVGp1-CRjz_

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-aaaa-webmail-subdomain-8fa91406
```

Example prompt: Check if webmail.rallylive.ca has an IPv6 address — look up its AAAA DNS record and tell me if it exists and what TTL it has.

## When to prefer this

Use this endpoint when you need a targeted, low-cost check for whether webmail.<domain> is configured with an IPv6 address, without enumerating all subdomains. Prefer it over general DNS tools when you specifically need the AAAA record for the webmail common subdomain via Cloudflare DoH.

## Known failure modes

- Domain does not have a webmail subdomain — returns NXDOMAIN or no records
- Invalid or malformed domain name — resolver returns an error
- Cloudflare DoH upstream is temporarily unavailable — request times out
- Domain exists but webmail host has only A (IPv4) records, not AAAA — returns no records

## How this service works

AAAA record of webmail.<domain>: looks up the webmail 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 webmail without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the webmail.<domain> AAAA record exists, the IPv6 address(es) in the record if present, the TTL value, and the DNS response code — sourced from Cloudflare's DNS over HTTPS resolver.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-aaaa-webmail-subdomain-8fa91406/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)