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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 cve-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, and DMARC record availability.
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://cve-intel.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured report on the email address including: syntax validity, whether the domain belongs to a known disposable/burner email provider, whether it appears to be a role-based address (e.g. admin@, noreply@), live DNS lookup results for MX records (mail server availability), SPF record presence and content, and DMARC policy record — collectively indicating whether the address is likely deliverable and trustworthy.
Example use cases
Pre-send lead list email hygiene
“Before I send this outreach campaign, can you verify that the email address michael.chen@techstartup.io is actually deliverable — check if the domain has MX records, SPF and DMARC set up, and flag it if it's a throwaway or role address?”
CRM signup fraud detection
“A new user just signed up with the address support@mailinator.com — can you check if that's a disposable or burner email and whether the domain has valid MX records so I know if it's a legitimate signup?”
B2B prospect email validation
“I'm about to reach out to a potential client at cfo@bigcorp.net — can you verify that email is syntactically valid, check if the domain's MX records exist and are live, and tell me if SPF and DMARC are configured properly?”
Technical details
Endpoint
GEThttps://cve-intel.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email verification that combines syntax checking, live DNS MX record lookup, and email authentication policy checks (SPF/DMARC) along with disposable provider and role-account detection. It is ideal for pre-outreach lead validation, CRM hygiene, fraud detection at signup, and any workflow where email deliverability and authenticity matter — especially within agent pipelines that support x402 micropayment-based access.
Side effects
- Invalid or malformed email string returns a syntax error or invalid flag
- DNS lookup timeout for obscure or newly-registered domains may return incomplete MX/SPF/DMARC data
- Domains with no MX records are flagged as undeliverable even if the domain exists
- Disposable provider list may lag newly created burner services
- Payment required (HTTP 402) if x402 USDC micropayment not provided
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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