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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 presence.
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/spf-dmarc-auditor)
Output
Returns a structured 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 address (e.g., info@, admin@), and the live DNS status of the domain's MX, SPF, and DMARC records.
Example use cases
Lead list email hygiene check
“Before we import these leads into the CRM, can you verify that sarah.johnson@techcorp.io is a real, deliverable email — not a burner address — and that the domain has proper MX and SPF records configured?”
Sign-up fraud prevention screening
“A new user just registered with temp-user@mailnull.com — can you check if that's a disposable or throwaway email address and whether the domain even has MX records to receive mail?”
Cold outreach deliverability audit
“I'm about to send a cold email campaign and want to verify ceo@bigenterprise.com first — does the domain have working MX records, a valid SPF policy, and a DMARC record in place?”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email health check that combines syntax validation, disposable-provider detection, role-account flagging, and live DNS MX/SPF/DMARC lookups. It is especially useful for lead enrichment pipelines, sign-up fraud screening, or cold outreach vetting where you need to confirm both deliverability and domain authentication posture in one request rather than making separate DNS queries.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the domain's nameservers are unresponsive
- Unknown or newly registered domains may return incomplete DNS data
- Rate limiting or payment failure may block the request (HTTP 402)
- Edge-case local-part formats may produce false syntax failures
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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