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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 2026-10-28).
Validates an email address for syntax correctness, disposable/burner 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/spf-dmarc-auditor)
Output
Returns a structured object indicating email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), and live DNS lookup results for MX records (deliverability), SPF policy, and DMARC policy for the email's domain.
Example use cases
CRM lead email screening
“Before I add this lead to our CRM, check whether sarah.johnson@techstartup.io is a real deliverable address, not a throwaway — and tell me if their domain has MX and SPF records properly configured.”
Signup fraud prevention
“We're getting a lot of junk signups — can you verify if user12345@mailinator.com is a disposable or burner email that we should block from registering?”
Email outreach audit
“I'm about to send a cold outreach campaign — can you validate that contact@bigcorp.com is deliverable and that bigcorp.com has DMARC and SPF set up so our emails won't bounce or get flagged?”
Technical details
Endpoint
POSThttps://token-intel.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single call that combines email syntax checking, disposable-provider detection, role-account flagging, and live DNS authentication record auditing (MX, SPF, DMARC) — rather than calling separate services for each layer. Particularly useful for CRM enrichment pipelines, signup fraud prevention, and cold outreach list hygiene where deliverability and authentication posture both matter.
Side effects
- Invalid or missing email field returns a validation error
- DNS lookup timeout if the domain's nameservers are slow or unresponsive
- Unknown or newly registered domains may lack MX/SPF/DMARC records, returning empty results rather than an error
- Disposable provider databases may not include the very latest burner domains
- Payment failure via x402 if USDC balance is 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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