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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 polymarket-odds.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/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://polymarket-odds.agentdiet.dev/v1/email-validator)
Output
Returns a structured JSON object indicating: whether the email address passes syntax validation, whether the domain is a known disposable or burner provider, whether the account appears to be a role-based address (e.g. info@, admin@), and the live DNS lookup results for MX (mail server existence), SPF (sender policy), and DMARC (domain-based message authentication) records.
Example use cases
Screen leads before CRM import
“Before I import this list of sales leads, can you verify that contact@globaltraders.io is a real deliverable email and not a disposable or role address with broken MX records?”
Block fake signups at registration
“A new user just signed up with tempuser99@mailnator.com — can you check if that email is from a disposable burner provider so I can decide whether to block the registration?”
Audit partner domain email security
“I'm about to send a sensitive contract to legal@partnercompany.net — can you confirm their domain has proper SPF and DMARC records set up so my email won't be spoofed or rejected?”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email health check that combines syntax validation, disposable/burner detection, role-account flagging, and live DNS MX/SPF/DMARC lookups — rather than simple format-only regex checks or separate DNS tooling. Particularly useful in B2B lead enrichment, user registration screening, and pre-send campaign validation pipelines where deliverability and email security posture both matter.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeouts for domains with slow or unreachable nameservers
- Disposable provider list may not cover brand-new throwaway domains
- Domain exists but has no MX records — email is syntactically valid but undeliverable
- Payment required (HTTP 402) if x402 micropayment credential is absent or insufficient
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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