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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 company-enrich.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, and DMARC record verification
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://company-enrich.agentdiet.dev/v1/email-validator)
Output
Returns a structured object indicating whether the email address passes syntax validation, whether the sending domain has live MX records, whether SPF and DMARC DNS records are present and valid, whether the provider is a known disposable or burner service, and whether the address is a role account (e.g. info@, admin@, support@).
Example use cases
Screening signups for disposable emails
“Before we let this user into the beta, can you verify that signup@tempmail.io isn't a burner or throwaway address and that its domain actually has valid MX records that can receive mail?”
Validating B2B leads before CRM import
“I have this lead email ceo@acmecorp.com — can you confirm it's syntactically valid, not a role account, and that the domain has proper MX, SPF, and DMARC records set up before I import it into HubSpot?”
Pre-send deliverability check for email campaign
“Before I fire off this newsletter campaign, can you check whether newsletter@bigclient.org is deliverable — specifically whether the domain has live MX records and SPF/DMARC policies configured?”
Technical details
Endpoint
POSThttps://company-enrich.agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, live email verification that goes beyond syntax checking — specifically when you need simultaneous MX, SPF, and DMARC DNS validation plus disposable provider and role account detection in a single call. Prefer it over simple regex validators when deliverability and lead quality matter, and over domain-only tools when the full email address is available. Particularly well-suited for B2B lead enrichment pipelines, signup fraud prevention, and pre-campaign deliverability audits.
Side effects
- Email address missing or empty — 400 validation error
- Domain has no MX records — deliverability flag set to false
- DNS lookup timeout — partial result or error on MX/SPF/DMARC fields
- Malformed email syntax — syntax check fails immediately
- Disposable provider database miss — may not catch very new throwaway services
- Payment not settled via x402 — 402 Payment Required response
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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