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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 github-audit.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 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://github-audit.agentdiet.dev/v1/email-validator)
Output
Returns a structured object indicating: email syntax validity, whether the address belongs to a known disposable or burner provider, whether it is a role account (e.g. info@, noreply@), and live DNS lookup results for MX, SPF, and DMARC records — giving an overall deliverability assessment.
Example use cases
Screening signups for fake emails
“Before we accept this new user registration, check whether the email they gave us — freestuff123@mailnull.com — is a disposable or burner address, has valid MX records, and would actually be deliverable.”
Pre-campaign email list hygiene
“I'm about to send a marketing campaign to leads@bigclient.io — can you verify it's not a role account, confirm the domain has proper MX and SPF records, and tell me whether it's safe to contact?”
B2B lead qualification check
“We just got a lead from someone at techpartner.com using the address support@techpartner.com — can you check whether that's a role account, whether the domain has DMARC and SPF configured, and whether the email is actually deliverable?”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email check that covers syntax, DNS deliverability (MX), email authentication policy (SPF/DMARC), and disposable/role-account risk — rather than a simple format check or a standalone MX lookup. Especially useful in lead enrichment pipelines, signup fraud prevention, and pre-send email list hygiene workflows where all four signals are needed together.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the domain's nameservers are slow or unresponsive
- Unknown or very new domains may lack MX/SPF/DMARC records, returned as absent rather than invalid
- Disposable provider lists may not include brand-new burner services
- Payment failure via x402 returns HTTP 402 and blocks the request
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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