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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 shopify-spy.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/DMARC record checks to confirm deliverability.
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://shopify-spy.agentdiet.dev/v1/email-validator)
Output
Returns a structured JSON object indicating email syntax validity, whether the domain belongs to a known disposable/burner provider, whether the address is a role account (e.g. info@, support@), and the live DNS status of MX, SPF, and DMARC records for the email's domain — giving a full deliverability picture.
Example use cases
Signup form email screening
“Before we create this account, can you verify that the email address signup@mailinator.com is legitimate — check if it's disposable, has working MX records, and isn't a role account?”
Sales lead email validation
“I have a B2B lead with email ceo@acmecorp.io — can you confirm it's deliverable by checking MX, SPF, and DMARC records, and tell me if it looks like a real personal address rather than a role account?”
Newsletter list hygiene check
“Can you validate newsletter@tempmail.com to see if it's a burner address and whether its domain has proper SPF and DMARC DNS records before we add it to our mailing list?”
Technical details
Endpoint
GEThttps://shopify-spy.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a multi-signal email validation that goes beyond simple syntax checks — specifically when you want live DNS MX/SPF/DMARC verification combined with disposable provider detection and role account flagging in a single call. It is particularly well-suited for B2B lead enrichment pipelines, signup fraud prevention, and pre-send mailing list hygiene where bounce reduction and deliverability confidence matter.
Side effects
- Missing or malformed email parameter returns an error
- Domain has no MX records (undeliverable domain)
- DNS lookup timeout for very slow or unreachable nameservers
- Edge-case syntax variants may be misclassified
- Disposable provider list may not cover newly created burner domains
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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