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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 token-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 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://token-intel.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured object indicating whether the email is syntactically valid, whether the domain uses a disposable/burner provider, whether it is a role account (e.g. info@, admin@), and the live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability assessment.
Example use cases
Pre-send lead list email scrubbing
“Before we email these B2B leads, can you verify that marketing@startup.io is a valid, deliverable address with proper MX and DMARC records set up, and not a role or disposable account?”
Sign-up fraud detection
“A new user just registered with temp-mail99@mailinator.com — can you check if that's a disposable or burner email before we let them into the platform?”
Cold outreach bounce prevention
“I'm about to send a cold outreach campaign — can you check if contact@globalventures.com is deliverable and that the domain has working SPF and MX records so my emails won't bounce?”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email deliverability check that goes beyond simple syntax validation — specifically when you need MX, SPF, and DMARC DNS record verification combined with disposable/burner provider and role account detection in a single call. It is ideal for lead enrichment pipelines, sign-up fraud prevention, and cold outreach pre-screening where bounce rates and deliverability matter.
Side effects
- Invalid or malformed email address input returns a syntax error
- Domain has no MX records configured, flagged as undeliverable
- DNS lookup timeout or resolution failure for the target domain
- Disposable provider database may not cover every burner service
- Rate limiting or payment failure when x402 micropayment is not satisfied
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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