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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 lookup to confirm deliverability.
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/email-check)
Output
Returns a structured JSON object indicating whether the email address is syntactically valid, whether the domain has live MX records (confirming deliverability), whether SPF and DMARC DNS records are present and correctly configured, whether the provider is a known disposable or burner service, and whether the address is a role account (e.g. admin@, support@, info@).
Example use cases
Lead qualification before sales outreach
“Before we add these leads to our CRM, check if contact@techstartup.io is a real, deliverable email — make sure it has valid MX records and isn't a throwaway address.”
Fraud screening for new signups
“A new user just signed up with the email temp-user@guerrillamail.com — can you verify if it's a disposable or burner email address so we can flag it before approving their account?”
Email list hygiene check
“I want to clean up my mailing list — can you validate newsletter@bigcorp.com to confirm it's syntactically correct, has working MX records, and isn't a role account like info@ or noreply@?”
Technical details
Endpoint
GEThttps://sec-intel.agentdiet.dev/v1/email-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple regex checks — specifically when you need live MX/SPF/DMARC DNS verification combined with disposable provider and role account detection in a single call. It is ideal for fraud prevention, lead qualification, or email list hygiene workflows where deliverability accuracy matters and you want micropayment-per-call pricing rather than subscription tiers.
Side effects
- Missing or invalid email parameter returns a 400 error
- DNS lookup timeout if the domain's nameservers are slow or unresponsive
- Disposable provider database may not cover all newly created burner services
- Role account detection may produce false positives for legitimate generic addresses
- Payment failure (HTTP 402) if the x402 micropayment is not completed or is insufficient
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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