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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-intel.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-23).
Validates an email address for syntax correctness, disposable/burner provider 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://shopify-intel.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured report on the email address covering: syntax validity, whether the domain is a known disposable/burner provider, whether it is a role account (e.g. info@, noreply@), live DNS MX record presence and values, SPF record presence and policy, and DMARC record presence and policy — giving an overall deliverability assessment.
Example use cases
Pre-send cold outreach email check
“Before I start my sales outreach campaign, can you verify that contact@bigclient.io is a real deliverable address — check the MX records, SPF, DMARC, and flag it if it's a role account or burner email?”
New user signup email gating
“A user just signed up with the email temp123@mailinator.com — can you check if it's a disposable or burner provider, and whether the domain has working MX records, so I can decide whether to block the registration?”
CRM data quality audit
“I have a lead in my CRM with the address support@startupxyz.com — can you verify the email syntax, check if there are live MX and DMARC records on that domain, and tell me if it's a role-based address I should flag?”
Technical details
Endpoint
POSThttps://shopify-intel.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email deliverability check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC lookup in a single call — especially in B2B lead enrichment, signup fraud prevention, or pre-campaign list hygiene workflows where DNS-level accuracy matters and per-call micropayment pricing ($0.005) is acceptable.
Side effects
- Invalid or malformed email input returns a syntax error response
- DNS lookup timeout if the domain's nameservers are unresponsive
- Domain does not exist (NXDOMAIN), resulting in no MX/SPF/DMARC records found
- Disposable provider database may not cover newly created burner services
- Rate limiting or payment failure (HTTP 402) if USDC micropayment is not resolved
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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