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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/DMARC record checks.
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/email)
Output
Returns a structured object indicating whether the email is syntactically valid, whether the domain has live MX records, whether SPF and DMARC DNS records exist and are properly configured, whether the address belongs to a known disposable or burner email provider, and whether it is a role-based account (e.g., info@, support@, noreply@).
Example use cases
Signup fraud prevention at registration
“Before we create an account for the user who signed up with temporarymail@guerrillamail.com, can you verify whether it's a disposable or burner email address and whether the domain has valid MX records?”
Email list hygiene before campaign send
“I'm about to send a marketing email to leads@contoso.net — can you check if that address is syntactically valid, deliverable, not a role account, and that the domain has MX, SPF, and DMARC records set up correctly?”
B2B lead deliverability audit
“We just scraped a lead with the email noreply@bigcorp.io — can you verify if it's a real deliverable inbox or a role account, and whether the domain's DNS email records look healthy?”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email deliverability check that combines syntax validation, DNS record verification (MX, SPF, DMARC), disposable provider detection, and role account flagging in a single API call. Prefer it over simple regex validators when you need real-time DNS confirmation, or over domain-only checkers when you need full email-level analysis. Especially useful in B2B lead enrichment, fraud prevention at signup, and pre-send email list hygiene workflows.
Side effects
- Invalid or missing email parameter returns an error response
- DNS lookup timeouts may cause MX/SPF/DMARC checks to fail or return inconclusive results
- Newly registered domains may not yet have propagated DNS records, producing false negatives
- Disposable provider lists may not be exhaustive, missing newer burner services
- Payment not satisfied (HTTP 402) if the x402 payment header is absent or invalid
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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