# 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 2026-10-23).

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

## Facts

- Endpoint: POST https://shopify-intel.agentdiet.dev/v1/disposable-email?utm_source=zero.xyz
- Price: $0.005/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-59f0fd9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uAFsOxDeNPe5Fny73NbDt

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-59f0fd9a -d '<json body>'
```

Example prompt: Can you check whether the email address john.doe@tempmail.org is real and deliverable — specifically if it passes syntax checks, has valid MX records, and whether it's a disposable or burner provider?

## When to prefer this

Choose this endpoint when you need a combined, real-time check of email syntax validity, disposable/burner provider detection, role-account flagging, and live DNS MX/SPF/DMARC verification in a single call. It is particularly useful for fraud prevention at signup, sales lead qualification, or pre-campaign deliverability auditing where you need DNS ground truth rather than just a static blocklist lookup.

## Known failure modes

- Missing or malformed email field returns a validation error
- DNS lookup timeouts if the domain's nameservers are unresponsive
- Unknown or very new domains may return incomplete MX/SPF/DMARC data
- Disposable provider database may not include newly registered throwaway domains
- Network errors result in a 5xx response with no deliverability data

## 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/disposable-email)

## Output

Returns a structured object indicating whether the email passes syntax validation, whether the domain is a known disposable or burner provider, whether the address appears to be a role account (e.g. info@, admin@), and the live DNS status of MX, SPF, and DMARC records for the domain.

## 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-59f0fd9a/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)