# Halowerk Domain Intel — MX Mimecast Baseline Check

> Halowerk Domain Intel — MX Mimecast Baseline Check 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).

Analyzes a domain's MX records against a Mimecast baseline to detect mail routing changes, returning WHOIS, DNS, mail policy, TLS, and subdomain intelligence.

## Facts

- Endpoint: POST https://dns.halowerk.com/domain/articles/mx-mimecast?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/halowerk-domain-intel-mx-mimecast-baseline-check-ecd3e826
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TN_D7C7y6nYu3C6m1TfRO

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 halowerk-domain-intel-mx-mimecast-baseline-check-ecd3e826 -d '<json body>'
```

Example prompt: Check whether acmecorp.com is still routing email through Mimecast — compare against this baseline I recorded last week: MX exchange mail.mimecast.com at priority 10, observed at 2024-06-01T12:00:00Z — and give me the full WHOIS, DNS, TLS, and subdomain intel too.

## When to prefer this

Choose this endpoint when you need to specifically detect MX record drift from a known Mimecast configuration alongside full domain intelligence (WHOIS, TLS, subdomains) in a single pay-per-call, no-signup call. It is particularly valuable for security monitoring, post-acquisition audits, and email deliverability investigations where Mimecast is the expected mail gateway. Prefer it over generic WHOIS or DNS tools when you need the baseline comparison feature and bundled mail policy analysis.

## Known failure modes

- Domain not found or does not exist — returns error indicating unresolvable domain
- Invalid domain format exceeding 253 characters — schema validation error
- Baseline records malformed or missing required fields — validation error
- Payment not received or x402 flow fails — 402 Payment Required with payment details
- Mimecast baseline not provided — analysis proceeds without comparison, diff unavailable
- DNS timeout for remote domain — partial results or timeout error

## 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 comprehensive domain intelligence report including WHOIS registration data, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, subdomains, and a comparison of current MX records against the provided Mimecast baseline to highlight any routing changes.

## 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/halowerk-domain-intel-mx-mimecast-baseline-check-ecd3e826/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)