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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 domain status, role account detection, and live DNS MX, SPF, and 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-check)
Output
Returns a structured object indicating 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 for MX, SPF, and DMARC records — giving a comprehensive deliverability and fraud-risk profile for the address.
Example use cases
Fraud screening at user sign-up
“Before I let this user register, can you check if the email they gave me — tempmail123@guerrillamail.com — is a real inbox or a throwaway burner address, and whether the domain has MX records?”
Pre-send campaign email hygiene
“I'm about to send a newsletter blast — can you verify that marketing-lead@acmecorp.io is actually deliverable and its domain has proper SPF and DMARC set up?”
B2B lead enrichment email check
“I scraped this contact email from LinkedIn: info@startupco.com — is it a deliverable address, does it have working MX records, and is it a generic role account I should avoid cold-emailing?”
Technical details
Endpoint
GEThttps://sec-intel.agentdiet.dev/v1/mx-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, comprehensive email health check covering syntax, DNS deliverability (MX), anti-spoofing configuration (SPF/DMARC), and fraud signals (disposable/burner detection and role accounts) — especially in agent or automated workflows requiring micropayment-native (x402) access without standing API keys.
Side effects
- Invalid or missing email parameter returns an error
- Transient DNS lookup failures may return incomplete MX/SPF/DMARC results
- Newly registered or obscure domains may not be in disposable provider lists
- DNS timeouts for non-existent or slow-responding domains
- Role account detection may miss custom role prefixes not in known lists
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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