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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 2026-10-23).
Validates an email address for syntax correctness, disposable/burner provider status, role-account flags, 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/email-verify)
Output
Returns a structured object indicating whether the email passed syntax validation, whether the domain belongs to a known disposable or burner provider, whether the address is a role account (e.g. admin@, info@), and the live DNS status of MX, SPF, and DMARC records for the email's domain — giving a comprehensive deliverability and trust assessment.
Example use cases
Scrubbing signup emails before onboarding
“Before I activate this new user account, can you verify that signup@tempinbox.net is a legitimate email — not a burner or disposable address — and that the domain actually has working MX records that can receive mail?”
Sales lead email quality check
“I've got a lead with the email contact@globallogistics.io — can you check if it's a deliverable address, whether it looks like a role account, and whether the domain has SPF and DMARC properly set up?”
Marketing list hygiene audit
“We're about to send a campaign to newsletter@startupboost.co — can you validate that email's syntax, check if the domain has live MX records, and flag it if it's a disposable or role-based address?”
Technical details
Endpoint
POSThttps://token-intel.agentdiet.dev/v1/email-verify?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, multi-signal email verification that combines syntax checking, disposable/burner detection, role-account flagging, and live DNS MX/SPF/DMARC record inspection. Prefer it over simple regex validators when deliverability and domain security posture both matter, and over generic WHOIS tools when you specifically need email-level DNS health. Especially useful in B2B lead enrichment pipelines, user onboarding flows, and marketing list hygiene where fake or undeliverable emails must be screened.
Side effects
- Malformed or empty email input returns a validation error
- DNS lookup timeouts may result in inconclusive MX/SPF/DMARC results for slow-responding nameservers
- Unknown or very new domains may not have SPF/DMARC records, returning absence flags rather than errors
- Payment not fulfilled returns HTTP 402 blocking the request
- Rate limits or service unavailability return 5xx errors
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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