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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 workflows.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 existence and configuration.
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://workflows.agentdiet.dev/v1/email)
Output
Returns a structured object indicating email syntax validity, whether the provider is a known disposable/burner service, whether the address is a role account (e.g. info@, admin@), and live DNS lookup results including presence and configuration of MX, SPF, and DMARC records for the domain.
Example use cases
Block throwaway emails at signup
“Before we add this new user to our mailing list, check if user@mailinator.com is a disposable or burner email address — and whether the domain even has working MX records.”
Pre-send deliverability audit
“We're about to send a campaign to contact@startup.io — can you verify that domain has valid MX records and proper SPF and DMARC configuration so our emails won't bounce or get flagged?”
CRM lead email hygiene
“I have a lead who gave us the email info@bigcorp.com — can you tell me if it's a real deliverable address, whether it's a role account, and if the domain's email authentication records look legitimate?”
Technical details
Endpoint
GEThttps://workflows.agentdiet.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined, single-call check covering syntax validation, DNS MX/SPF/DMARC live lookup, disposable provider detection, and role-account flagging — rather than calling separate DNS or email validation services individually. Ideal for fraud prevention at signup, pre-send list hygiene, and CRM lead qualification. Pay-per-call x402 micropayment model makes it suitable for on-demand single-address checks without a subscription.
Side effects
- Invalid or malformed email input returns a syntax error response
- DNS lookup timeout or failure if the domain is unreachable or DNS is slow
- Missing MX/SPF/DMARC records returned as absent rather than an error
- Unknown or novel disposable providers may not be flagged if not in the provider database
- Ambiguous role-account detection for non-standard role prefixes
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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