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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, and DMARC record verification.
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/email)
Output
Returns a structured object indicating email syntax validity, whether the provider is a known disposable/burner service, whether the local part is a role account (e.g. admin, noreply), and live DNS lookup results for MX records (deliverability), SPF record presence/content, and DMARC record presence/policy.
Example use cases
Lead list email screening
“Before we import these leads into our CRM, can you check if alex.turner@prospectco.com is a legitimate deliverable address — not a throwaway or a role account like sales@ — and that the domain has MX records set up?”
New user signup fraud prevention
“A user just signed up with the email temp123@mailinator.com — can you tell me if that's a disposable burner address and whether the domain has proper SPF and DMARC records configured?”
Email security posture audit
“Can you verify whether outreach@startupxyz.io has valid MX records and that the domain is properly secured with both SPF and DMARC policies in DNS?”
Technical details
Endpoint
GEThttps://domain-osint.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email validation that combines syntax checking, disposable provider detection, role account flagging, and live DNS verification of MX, SPF, and DMARC records — especially in B2B lead enrichment, signup fraud prevention, or outreach quality assurance workflows where deliverability and security posture both matter.
Side effects
- Invalid or malformed email format returns a syntax error response
- Domain has no MX records, indicating the address is undeliverable
- DNS lookup timeout or failure for live record resolution
- Rate limiting or payment failure via x402 micropayment protocol
- Domain exists but has no SPF or DMARC records, flagged as misconfigured
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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