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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 2026-10-21).
Validates an email address for syntax correctness, disposable/burner domain detection, role account flags, 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://company-enrich.agentdiet.dev/v1/mx-deliverability-verifier)
Output
Returns a structured object indicating email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. admin@, info@), and live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and trust assessment.
Example use cases
Scrubbing leads before outreach
“I have a new lead with the email contact@techstartup.io — can you verify it's actually deliverable and not a throwaway address before I add them to my outreach list?”
Blocking fake signups at registration
“A user just signed up with hello@mailinator.com — can you check if that's a disposable or burner email so I can decide whether to block the registration?”
Email infrastructure audit for a domain
“Can you check whether the domain used by support@bigcorp.com has proper MX, SPF, and DMARC records set up? I want to know if their email infrastructure is legit before we integrate with them.”
Technical details
Endpoint
GEThttps://company-enrich.agentdiet.dev/v1/mx-deliverability-verifier?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal email check that goes beyond simple syntax validation — specifically when you need live DNS verification of MX, SPF, and DMARC records alongside disposable domain and role account detection in a single call. Prefer it over lightweight regex-only validators when deliverability confidence for outreach, lead scoring, or signup fraud prevention is critical.
Side effects
- Missing or malformed email parameter returns a validation error
- Domain has no MX records — email cannot receive mail
- DNS lookup timeout when querying live records for obscure or slow domains
- Disposable provider database may not cover brand-new throwaway services
- Non-existent TLD or domain returns DNS NXDOMAIN error
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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