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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 domain-osint.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://domain-osint.agentdiet.dev/v1/spf-dmarc-auditor)
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 — enabling a full deliverability and security posture assessment for the given email address.
Example use cases
Screening signups for fake emails
“Before I activate this new user account, check whether signup@guerrillamail.com is a real deliverable address or a burner — also tell me if it's a role account or if the domain lacks proper MX/SPF/DMARC records.”
Pre-campaign email list hygiene
“I'm about to send an email blast — can you verify that contact@bigcorpinc.com is syntactically valid, has live MX records, and isn't flagged as a disposable or role address?”
Domain email security audit
“Audit the email domain for support@myStartup.io — I need to know if they have SPF and DMARC DNS records set up properly, and whether the MX records are live and reachable.”
Technical details
Endpoint
GEThttps://domain-osint.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, comprehensive email verification that combines syntax checking, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC auditing — especially useful for fraud prevention, user onboarding pipelines, B2B lead qualification, or pre-send email list hygiene. Prefer it over basic regex validators when real-time DNS deliverability and email security posture matter.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeouts may prevent live MX/SPF/DMARC checks from completing
- Unknown or newly registered domains may return incomplete DNS data
- Private or internal domains may not resolve publicly
- Payment failure (402) if x402 micropayment is not properly handled
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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