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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, 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://shopify-spy.agentdiet.dev/v1/mx-deliverability-verifier)
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. admin@, info@), and live DNS lookup results including presence of MX, SPF, and DMARC records for the email domain.
Example use cases
User signup email validation
“Before we create an account for this new user, check if 'signup_user@tempmail.com' is a legit email — make sure it's not a disposable address and that the domain actually has working mail servers.”
Sales lead email quality check
“I have a lead with email 'info@prospectcorp.io' — can you verify whether it's a deliverable address, check if it's a role account, and confirm the domain has SPF and DMARC records set up?”
Newsletter list hygiene audit
“Before I send out the campaign, can you validate 'subscriber@randomdomain.net' — check if the domain has MX records, whether it passes SPF/DMARC, and if it's a known throwaway email provider?”
Technical details
Endpoint
GEThttps://shopify-spy.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email health check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC verification — especially in agentic workflows doing lead enrichment, user onboarding gating, or mailing list hygiene at $0.005 per call.
Side effects
- Missing or empty email parameter returns validation error
- Malformed email string may return syntax-invalid without DNS lookup
- DNS lookup timeout for domains with unresponsive nameservers
- Unknown or newly registered domains may return absent MX/SPF/DMARC records even if legitimate
- Rate limiting or payment failure (HTTP 402) if usage quota exceeded
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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