# 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 existence.

## Facts

- Endpoint: GET https://shopify-intel.agentdiet.dev/v1/email-check?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-6a639613
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UVAXLf45YS1b-os3k8Wv3

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-6a639613
```

Example prompt: Can you check whether john.doe@acmecorp.com is a real, deliverable email — I want to know if it passes syntax, has valid MX records, and isn't from a disposable or burner provider?

## When to prefer this

Choose this endpoint when you need a comprehensive, real-time single-email check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC lookup in one call. Prefer it over simple regex-only validators when deliverability and email security posture both matter, and over bulk list-cleaning services when checking individual addresses on-demand at low cost per call.

## Known failure modes

- Missing or invalid email parameter returns a 400-level error
- DNS lookup timeouts may cause MX/SPF/DMARC checks to fail or return inconclusive results
- Unknown or newly created domains may not have indexed DNS records yet
- Payment not processed (HTTP 402) if x402 micropayment flow fails
- Email addresses with unusual but valid syntax may be incorrectly flagged by syntax parser

## 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-check)

## Output

Returns a structured object indicating whether the email passes syntax checks, whether the domain has live MX records (confirming the domain can receive email), SPF and DMARC DNS record presence, whether the provider is a known disposable/burner service, and whether the address is a role-based account (e.g. admin@, noreply@).

## 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-6a639613/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)