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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 domain status, role account detection, and live DNS MX, SPF, and DMARC record verification.
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/disposable-email)
Output
Returns a structured JSON object indicating whether the email passes syntax checks, whether the domain belongs to a known disposable/burner provider, whether it is a role-based address, and the live DNS status of MX, SPF, and DMARC records for the email's domain — enabling a full deliverability and quality assessment.
Example use cases
Screening sign-up form submissions
“Someone just registered on our platform with the email user123@guerrillamail.com — can you check if it's a disposable burner address, verify the MX records are real, and tell me if it's safe to send a confirmation email to?”
Lead list quality check before outreach
“Before we email this sales prospect at cto@randomdomain.io, can you verify the address is syntactically valid, the domain has working MX records, and SPF/DMARC are set up so our messages won't bounce?”
Detecting role accounts in onboarding
“We got a sign-up from support@bigcorp.com — can you tell me if that's a role-based email address rather than a real person, and whether the domain is configured to actually receive mail?”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time email quality check combining syntax validation, disposable domain detection, role-account flagging, and live DNS MX/SPF/DMARC verification in a single call — especially useful for B2B SaaS onboarding flows, lead enrichment pipelines, or any agentic workflow that needs to screen user-submitted emails before sending or storing them.
Side effects
- Missing or empty email parameter returns a 400 validation error
- Malformed email string that cannot be parsed may return an error or a syntax-invalid flag
- DNS lookup timeouts for obscure domains may cause delayed or incomplete MX/SPF/DMARC results
- Payment failure via x402 returns 402 if USDC funds are insufficient
- Newly registered domains may not yet have MX/SPF/DMARC records even if legitimate
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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