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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 2026-10-28).
Validates an email address for syntax, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record checks to assess 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://cve-intel.agentdiet.dev/v1/email-validator)
Output
Returns a structured assessment including: email syntax validity, whether the domain uses a known disposable/burner provider, whether the address is a role account (e.g. admin@, info@), live DNS lookup results for MX records (mail servers), SPF record presence and configuration, and DMARC policy record — giving a complete deliverability and risk profile for the address.
Example use cases
Signup fraud screening for SaaS
“Before activating this new user account, check if the email they signed up with — freemailtest92@mailinator.com — is a disposable burner address or a role account, and confirm the domain has valid MX records.”
B2B lead list deliverability audit
“I have a lead I want to email — cto@acmecorp.io — can you verify the email syntax, check if the domain has MX and SPF records set up, and tell me if it's safe to send to?”
Pre-send campaign email validation
“Before I import this contact into my email campaign, can you validate newsletter@bigclient.com — check for DMARC configuration, confirm it's not a role address, and tell me if the domain is set up to receive mail?”
Technical details
Endpoint
POSThttps://cve-intel.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email validation that goes beyond simple format checking — specifically when you need real-time DNS MX/SPF/DMARC verification combined with disposable provider and role account detection in a single call. Prefer this over lightweight regex-only validators when deliverability and fraud risk matter, such as before importing contacts into a CRM, screening signups, or qualifying B2B leads.
Side effects
- Invalid or malformed email syntax returns a syntax error flag
- DNS lookup timeout for MX/SPF/DMARC if the domain's nameservers are slow or unresponsive
- Domain does not exist (NXDOMAIN) results in no MX/SPF/DMARC records found
- Payment not completed (HTTP 402) blocks execution
- Missing required 'email' field returns a validation error
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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