# Lordevo Email Auth Check

> Lordevo Email Auth Check is a paid API for AI agents from shop.lordevo.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Checks a domain's email authentication posture (SPF, DKIM, DMARC, MTA-STS, BIMI) and returns a spoofability grade with actionable issue details

## Facts

- Endpoint: GET https://shop.lordevo.com/api/quick/email-auth?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lordevo-email-auth-check-7acad0db
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dpO0FxS8aQfEKgvS4_Y3s

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 lordevo-email-auth-check-7acad0db
```

Example prompt: Can you check the email authentication setup for stripe.com — I want to know if it's spoofable, what the DMARC policy is, and get an overall security grade?

## When to prefer this

Choose this endpoint when you need a comprehensive, single-call email authentication audit covering SPF, DKIM, DMARC, MTA-STS, BIMI, and spoofability in one response with a human-readable grade and actionable fix guidance. Prefer it over manual DNS lookups or separate SPF/DMARC checkers when you need all signals in one structured payload. Ideal for security audits, vendor assessments, phishing investigations, or pre-deployment email configuration validation.

## Known failure modes

- Domain does not exist or has no DNS records — returns empty or null fields with low score
- Invalid domain format — may return an error or unparseable result
- Domain has no MX records — mail provider will be null
- SPF record with more than 10 DNS lookups flagged as issue but still returned
- DKIM check limited to 30 common selectors — custom or obscure selectors may not be found
- Rate limiting or transient DNS failures may return partial results

## How this service works

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## Output

Returns a JSON object with: overall grade (A–F) and numeric score, spoofable boolean, MX records and detected mail provider, full SPF record with all-qualifier and DNS lookup count, DKIM selectors found at 30 common selector names, DMARC policy/pct/rua, MTA-STS status, TLS-RPT, BIMI presence, and a prioritized issues list with severity, title, and fix guidance for each problem found.

## 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": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name, e.g. example.com (a URL or email address also works)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "mx": [
   {
    "host": "aspmx.l.google.com",
    "priority": 1
   }
  ],
  "spf": {
   "all": "~all",
   "record": "v=spf1 include:_spf.google.com ~all",
   "dns_lookups": 4
  },
  "dkim": {
   "selectors_found": [
    "google"
   ]
  },
  "tool": "email-auth",
  "dmarc": {
   "pct": 100,
   "rua": null,
   "policy": "none"
  },
  "grade": "C",
  "score": 66,
  "domain": "example.com",
  "issues": [
   {
    "id": "dmarc_none",
    "fix": "Move to p=quarantine then p=reject.",
    "title": "DMARC policy is p=none",
    "severity": "medium"
   }
  ],
  "spoofable": true,
  "mail_provider": [
   "Google Workspace"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lordevo-email-auth-check-7acad0db/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shop.lordevo.com](https://www.zero.xyz/host/shop.lordevo.com/llms.txt)