# Domain Intel MX Forward Email Lookup

> Domain Intel MX Forward Email Lookup is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-12).

Analyzes MX records and mail forwarding policy for a domain, supporting optional baseline comparison, paid per-call via x402/USDC.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/mx-forward-email?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/domain-intel-mx-forward-email-lookup-a7ee5b39
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Afyi33f-8-ZNQ7yNPPC85

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-forward-email-lookup-a7ee5b39 -d '<json body>'
```

Example prompt: What are the current MX records for forward.email, and how do they compare to these baseline records: exchange 'mx1.forward.email' priority 10 and 'mx2.forward.email' priority 20, last observed on 2024-11-01?

## When to prefer this

Choose this endpoint when you need fast, pay-per-call MX record and mail forwarding intelligence without API key signup overhead, especially when you want to compare current records against a known baseline or need USDC micropayment billing via x402. Prefer it over general-purpose DNS tools when the focus is specifically on mail exchange and forwarding policy for a single domain.

## Known failure modes

- Domain not found or unresolvable — returns empty or error response
- Malformed domain input exceeding 253 characters — validation error
- Baseline records array exceeds 50 items — schema validation failure
- Payment not received or insufficient USDC — x402 payment required error
- DNS timeout or upstream resolver failure — service unavailable

## 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 MX record data including mail exchange hostnames and priorities for the queried domain, mail forwarding policy details, and optionally a comparison against a provided baseline snapshot to highlight any changes in mail routing configuration.

## 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-forward-email-lookup-a7ee5b39/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)