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B2A Email Deliverability, MX, SPF & DMARC Verifier
B2A Email Deliverability, MX, SPF & DMARC Verifier is a paid API for AI agents from sec-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/DMARC record presence.
Price / call$0.005
Success—
StatusUnknown
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://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured object indicating whether the email passes syntax checks, whether the domain is a known disposable/burner provider, whether it's a role-based account (e.g. info@, noreply@), and the live DNS status of the domain's MX, SPF, and DMARC records — giving an overall deliverability assessment.
Example use cases
Lead form email quality check
“Before we add this signup to our CRM, can you verify that sarah.jones@tempmail.org is a legitimate email — not a burner or role account — and that the domain actually has mail servers configured?”
Pre-send campaign email validation
“We're about to send a campaign to a list of addresses. Can you check whether newsletters@bigcorp.com is deliverable, whether it's a role account, and whether bigcorp.com has SPF and DMARC records in place?”
Fraud detection for new user registration
“A new user just signed up with admin@guerrillamail.com — can you check if that's a disposable or throwaway email address and whether the domain has valid MX records?”
Technical details
Endpoint
GEThttps://sec-intel.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email deliverability check that goes beyond simple syntax validation — especially when you need disposable provider detection, role account flagging, and real-time DNS MX/SPF/DMARC verification in a single call. Prefer this over generic regex validators when building fraud-resistant signup flows, CRM hygiene pipelines, or pre-send email campaign checks.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout for domains with slow or unresponsive nameservers
- Unknown or newly registered domains may have incomplete DNS data
- Disposable provider lists may not cover very new burner services
- Rate limiting or payment failure (402) if USDC microtransaction is not settled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email address to validate for syntax, MX deliverability, and disposable risk |
Output
Schema · Response
{
"type": "object"
}Reviews
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