# Domain Intel – MX / Mail Policy Lookup (Infomaniak Article)

> Domain Intel – MX / Mail Policy Lookup (Infomaniak Article) is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-13).

Given a domain and optional MX baseline, returns WHOIS, DNS, mail policy (SPF/DKIM/DMARC), TLS certificate, and subdomain intelligence — paid per call in USDC via x402.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/mx-infomaniak?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intel-mx-mail-policy-lookup-infomaniak-article-f34e6339
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TAtoOtDEBqoKQMdaM-JSD

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 domain-intel-mx-mail-policy-lookup-infomaniak-article-f34e6339 -d '<json body>'
```

Example prompt: Pull up the full domain intelligence report for stripe.com — WHOIS, DNS records, MX and mail policy (SPF/DKIM/DMARC), TLS certificate, and any subdomains you can find, and compare the MX records against this baseline: mx1.stripe.com priority 10, observed 2024-01-15.

## When to prefer this

Choose this endpoint when you need comprehensive, multi-signal domain intelligence (WHOIS + DNS + mail policy + TLS + subdomains) in a single pay-per-call request with no signup or API key. Ideal for one-off audits, agentic recon pipelines, or cost-controlled workflows where you pay $0.009 USDC only when you query. Prefer it over dedicated WHOIS-only or DNS-only tools when you want the full picture in one round trip, and over subscription APIs when query volume is low or unpredictable.

## Known failure modes

- Invalid or non-existent domain returns an error or empty record set
- Payment failure via x402 (insufficient USDC balance) results in 402 response and no data returned
- Baseline schema mismatch (missing required fields: domain, observed_at, records) causes validation error
- Domain exceeds 253-character limit causing request rejection
- MX record priority out of range (>65535) triggers schema validation failure
- Rate limiting or upstream DNS timeout may return partial results

## How this service works

Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.

## Output

Returns a structured payload covering WHOIS registration data, DNS records (A, AAAA, CNAME, NS, etc.), MX records with priorities, mail policy records (SPF, DKIM, DMARC), TLS/SSL certificate metadata, and discovered subdomains. When a baseline is supplied, the response also flags any changes relative to the prior MX snapshot.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "maxLength": 253
  },
  "baseline": {
   "type": "object",
   "required": [
    "domain",
    "observed_at",
    "records"
   ],
   "properties": {
    "domain": {
     "type": "string",
     "maxLength": 253
    },
    "records": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "exchange",
       "priority"
      ],
      "properties": {
       "exchange": {
        "type": "string",
        "maxLength": 254
       },
       "priority": {
        "type": "integer",
        "maximum": 65535,
        "minimum": 0
       }
      },
      "additionalProperties": false
     },
     "maxItems": 50
    },
    "observed_at": {
     "type": "string",
     "maxLength": 40
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/domain-intel-mx-mail-policy-lookup-infomaniak-article-f34e6339/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.halowerk.com](https://www.zero.xyz/host/dns.halowerk.com/llms.txt)