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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 email-verify.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown.
Validates an email address for syntax correctness, disposable/burner provider status, role-account detection, and live DNS MX, SPF, and 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://email-verify.agentdiet.dev/v1/email)
Output
Returns a structured object indicating email syntax validity, whether the address belongs to a known disposable or burner provider, whether it is a role-based account (e.g. info@, admin@), and live DNS lookup results for MX records (confirming the domain accepts mail), SPF policy, and DMARC policy — collectively indicating whether the email is likely deliverable and trustworthy.
Example use cases
Signup fraud prevention screening
“Before creating an account for the user who signed up with temp-mail123@guerrillamail.com, check if it's a disposable burner address or a role account so we can decide whether to allow registration.”
B2B lead email quality check
“I have a lead with email sales@acmecorp.io — can you verify it's deliverable, not a role address, and that acmecorp.io has proper MX and DMARC records set up before we add them to our outreach campaign?”
Mailing list hygiene audit
“Check whether newsletter@bigco.com is a valid deliverable address with working MX records and proper SPF authentication so I know if it's safe to keep it on our mailing list.”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation in a single call — combining syntax checking, disposable/burner detection, role-account flagging, and live DNS record verification (MX, SPF, DMARC) — rather than a simple format check or a dedicated single-signal service. Ideal for lead enrichment pipelines, signup fraud prevention, mailing list hygiene, and any workflow requiring high confidence in email deliverability and authentication posture before sending.
Side effects
- Missing or empty email parameter returns a 400 validation error
- Malformed email string that cannot be parsed returns a syntax-invalid result
- DNS lookup timeout for obscure or newly registered domains may return incomplete MX/SPF/DMARC data
- Payment not completed (HTTP 402) if x402 payment header is missing or insufficient
- Temporary DNS failures may cause intermittent MX lookup errors for valid domains
- Disposable provider list may not cover very new throwaway services
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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