# DNS TXT Record Lookup for webmail Subdomain

> DNS TXT Record Lookup for 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 TXT DNS record of the webmail.<domain> subdomain via Cloudflare DoH and reports whether it exists, along with its records and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/webmail/txt?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-txt-record-lookup-for-webmail-subdomain-f2366cfe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Xwy-nrUz3yo1AjjVnWYCW

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-txt-record-lookup-for-webmail-subdomain-f2366cfe
```

Example prompt: Can you check if there's a TXT record configured for the webmail subdomain of example.com, and tell me what the record says and its TTL?

## When to prefer this

Use this endpoint when you need a quick, targeted check for the TXT DNS record of the webmail subdomain of a specific domain, without running a full subdomain enumeration. Ideal for email infrastructure audits, domain reconnaissance, or verifying whether a webmail host is configured. Prefer this over general DNS tools when you specifically need TXT records for the webmail host and want Cloudflare DoH resolution.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- webmail subdomain not configured — returns NXDOMAIN or empty records
- Malformed domain input — may return error or empty response
- Cloudflare DoH service unavailable — lookup fails with no result
- TXT record exists but is empty — returns empty record set with NOERROR

## How this service works

TXT record of webmail.<domain>: looks up the webmail host under the domain you give (TXT 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> subdomain exists in DNS, its TXT record values (if any), the TTL, and the DNS response code (e.g. NOERROR or NXDOMAIN).

## 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-txt-record-lookup-for-webmail-subdomain-f2366cfe/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)