# Stormap Email & Domain Legitimacy Check

> Stormap Email & Domain Legitimacy Check is a paid API for AI agents from stormap.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Validates whether an email address or domain is legitimate by checking syntax, role address status, disposable/free provider, MX records, SPF, DMARC, domain age, and website liveness — without mailbox probing.

## Facts

- Endpoint: GET https://stormap.ai/x402/v1/email_domain_check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stormap-email-domain-legitimacy-check-d8224b8d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NfqfBnCMnerCUnmSOCU0U

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 stormap-email-domain-legitimacy-check-d8224b8d
```

Example prompt: Can you check whether sales@acmecorp.io is a legitimate email address — I want to know if the domain has valid MX records, whether it's disposable or free, and whether SPF and DMARC are set up properly?

## When to prefer this

Choose this endpoint when you need a multi-signal legitimacy verdict for an email address or domain without sending any probe emails — ideal for trust-and-safety checks, lead qualification, fraud prevention, and CRM hygiene where mailbox probing is undesirable or prohibited. Prefer it over simple syntax validators when you need DNS-level signals (MX, SPF, DMARC) and domain intelligence (age, disposable detection) in a single call.

## Known failure modes

- Invalid or malformed email/domain input returns an error or syntax-fail verdict
- Domain with no DNS records may return null MX with inconclusive verdict
- Very new domains may have limited age data
- Rate limiting if too many requests are made in a short period
- Some privacy-protected domains may obscure age or registration data

## How this service works

Is this email address or domain legitimate? Verdict with reasons: syntax, role address, disposable or free provider, MX / null MX, mail provider, SPF, DMARC, website live, domain age. No mailbox probing.

## Output

Returns a structured verdict (legitimate or not) with individual signals: syntax validity, whether it's a role address (e.g. sales@, info@), whether the domain belongs to a disposable or free email provider, MX record presence or null MX, the identified mail provider, SPF record status, DMARC record status, whether the website is live, and the domain's age.

## 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",
     "required": [
      "email"
     ],
     "properties": {
      "email": {
       "type": "string",
       "description": "Email address or domain, e.g. sales@stripe.com"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stormap-email-domain-legitimacy-check-d8224b8d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stormap.ai](https://www.zero.xyz/host/stormap.ai/llms.txt)