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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/DMARC record health.
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/spf-dmarc-auditor)
Output
Returns a structured object indicating: email syntax validity, whether the domain uses a known disposable/burner provider, whether the local part is a role account (e.g. info@, noreply@), live MX record presence and details, SPF record content and validity, and DMARC policy record content and configuration.
Example use cases
Lead quality check before CRM import
“Before I import this list of leads, can you verify that sarah.jones@techstartup.io is a legitimate, deliverable email — not a burner or role account — and that the domain has valid MX and DMARC records?”
Signup fraud prevention for SaaS
“A new user just signed up with the email temp-user@mailinator.com — can you check if it's a disposable or throwaway address and whether the domain has real MX records, so I can decide whether to block the registration?”
Email security audit for partner domain
“We're about to start emailing partners at @globalventures.com — can you audit that domain's SPF and DMARC DNS records and confirm the MX setup looks legitimate before we kick off the campaign?”
Technical details
Endpoint
POSThttps://company-enrich.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email validation in a single call — covering syntax, DNS deliverability (MX), email security posture (SPF/DMARC), disposable provider detection, and role account flagging simultaneously. Prefer it over simple syntax checkers when you need live DNS verification, or over domain-only tools when the full email address and per-address disposable/role checks are needed. Particularly well-suited for B2B lead enrichment pipelines, SaaS signup fraud prevention, and pre-send email campaign hygiene.
Side effects
- DNS timeout or unreachable DNS servers may cause MX/SPF/DMARC lookups to fail or return incomplete results
- Malformed or missing email address input returns a validation error
- Unknown or newly registered domains may lack MX/SPF/DMARC records, resulting in 'not configured' flags rather than errors
- Disposable provider database may not include very new burner domains
- Rate limiting or payment failure (x402) may prevent the request from completing
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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