# B2A Email Deliverability, MX, SPF & DMARC Verifier

> B2A Email Deliverability, MX, SPF & DMARC Verifier is a paid API for AI agents from shopify-intel.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-21).

Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record checks.

## Facts

- Endpoint: GET https://shopify-intel.agentdiet.dev/v1/email?utm_source=zero.xyz
- Price: $0.005/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-intel.agentdiet.dev
- Website: https://shopify-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-10b44ebf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jkX3KDOBCtP-B-18EGupI

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 shopify-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-10b44ebf
```

Example prompt: Can you check whether john.doe@tempmail.com is a real, deliverable email — specifically if it's a disposable or burner address, and whether the domain has valid MX, SPF, and DMARC records?

## When to prefer this

Choose this endpoint when you need a comprehensive, single-call email check that combines syntax validation, disposable provider detection, role account identification, and live DNS record verification (MX, SPF, DMARC) in one response. Prefer it over simple regex or syntax-only validators when deliverability assurance and fraud/burner detection are required, especially in B2B lead enrichment, user registration flows, or pre-send campaign validation.

## Known failure modes

- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the domain's nameservers are slow or unresponsive
- Domain does not exist (NXDOMAIN) resulting in no MX/SPF/DMARC data
- Payment not settled via x402 results in HTTP 402 response blocking the call
- Rate limiting if too many requests are made in a short window

## How this service works

Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://shopify-intel.agentdiet.dev/v1/email)

## Output

Returns a structured report covering: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. admin@, noreply@), and live DNS lookup results including MX records (mail server presence), SPF record content, and DMARC policy — effectively assessing real-world deliverability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "email"
 ],
 "properties": {
  "email": {
   "type": "string",
   "minLength": 1,
   "description": "Email address to validate for syntax, MX deliverability, and disposable risk"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/shopify-intel-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-10b44ebf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-intel.agentdiet.dev](https://www.zero.xyz/host/shopify-intel.agentdiet.dev/llms.txt)