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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 correctness, disposable/burner provider status, role account detection, and live DNS MX/SPF/DMARC record health.
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/disposable-email)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain is a known disposable/burner provider, whether it is a role-based account (e.g. admin@, noreply@), and the live DNS health of the domain including MX record presence, SPF record validity, and DMARC policy configuration.
Example use cases
Screen sign-up email before onboarding
“A new user just signed up with the email address free-trial@guerrillamail.com — can you check if it's a disposable burner address, whether its domain has working MX records, and if it passes SPF and DMARC so I know whether to let them in?”
Pre-send deliverability check for outreach
“Before I send my cold outreach campaign, can you verify that contact@acmecorp.io is a legitimate, deliverable email — check its MX, SPF, and DMARC records and flag if it looks like a role account?”
Validate lead email from form submission
“I just got a form submission from info@tempmail.org — is that a real email domain with valid DNS records, or is it a throwaway address I should reject from my CRM?”
Technical details
Endpoint
POSThttps://cve-intel.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email validation that combines syntax checking, disposable/burner domain detection, role account flagging, and live DNS MX/SPF/DMARC record verification — especially useful for B2B lead enrichment, user registration screening, or pre-send deliverability checks. Prefer this over basic regex validators when you need authoritative DNS-level confirmation of deliverability.
Side effects
- Invalid or malformed email string returns a syntax error response
- Domain with no MX records returns non-deliverable status
- DNS lookup timeout for obscure or newly registered domains
- Rate limiting or payment failure (HTTP 402) if x402 payment not resolved
- Empty or missing email field returns 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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