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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, $0.005000/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, and DMARC record checks.
Price / call$0.005000
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/)
Output
Returns a structured object indicating whether the email passed syntax validation, whether the domain uses a known disposable or burner provider, whether the local part is a role account (e.g. info@, support@), and live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and legitimacy assessment.
Example use cases
Lead list email hygiene check
“Before we import this list, can you verify that the email cto@techstartup.io is valid — check its MX records, SPF, DMARC, and whether it looks like a burner or role address?”
User registration fraud prevention
“A new user just signed up with the address temp123@mailinator.com — can you check if it's a disposable or burner email so we can decide whether to block the registration?”
Email campaign deliverability audit
“We're about to send a campaign to newsletter@bigcorp.com — can you verify it's a deliverable address with working MX and SPF records and not a generic role account that might bounce?”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation that covers syntax, DNS (MX/SPF/DMARC), disposable provider detection, and role account identification in a single call — especially useful in lead enrichment pipelines, user registration flows, or pre-campaign deliverability audits where false positives are costly and you need structured DNS-level evidence rather than just a syntax check.
Side effects
- Missing required 'email' parameter returns a validation error
- Malformed email string may return syntax-invalid with no DNS checks performed
- DNS lookup timeouts for domains with slow or unreachable nameservers
- Disposable provider list may not cover newly created burner domains
- No SMTP-level RCPT-TO check is performed so inbox existence is not confirmed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email address to validate for syntax, MX deliverability, and disposable risk |
| limit | integer | Maximum number of items to return per page (1-100) |
| cursor | string | Opaque pagination cursor for fetching the next page |
Output
Schema · Response
{
"type": "object"
}Reviews
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