# SPF & DMARC Email Security Checker

> SPF & DMARC Email Security Checker is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Checks a domain's SPF record, DMARC policy, and MX records to determine if it is protected against email spoofing and phishing.

## Facts

- Endpoint: GET https://intel.rallylive.ca/email-security
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spf-dmarc-email-security-checker-e3313dce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uIUkixw-zkiUV8ATLPTQC

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 spf-dmarc-email-security-checker-e3313dce
```

Example prompt: Can you check whether acmecorp.com has proper SPF and DMARC protection set up — I want to know if it's vulnerable to spoofing and what their DMARC policy is?

## When to prefer this

Choose this endpoint when you need a quick, consolidated email security audit for a single domain covering SPF, DMARC policy level, and MX/mail provider in one call — especially useful for vendor vetting, phishing risk assessment, or deliverability troubleshooting. Prefer this over a generic DNS lookup when you specifically want email authentication analysis with human-readable security verdicts rather than raw DNS records.

## Known failure modes

- Domain does not exist or has no DNS records — returns empty or error for all fields
- Domain has SPF but no DMARC record — partial result with DMARC absent
- Malformed domain input — may return error or empty response
- Network timeout when querying DNS — may result in incomplete data
- Payment of $0.01 USDC not provided — request rejected with 402 status

## How this service works

Email security check for a domain: SPF record present and its content, DMARC record and policy (none / quarantine / reject), MX records and mail provider. Tells you whether a domain is protected against spoofing and phishing. Email authentication audit, vendor vetting, deliverability troubleshooting. $0.01 per domain.

## Output

Returns the domain's SPF record and its full content, DMARC record and enforcement policy level (none, quarantine, or reject), MX records and identified mail provider — together providing a clear verdict on whether the domain is protected against email spoofing and phishing.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/spf-dmarc-email-security-checker-e3313dce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)