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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 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://company-enrich.agentdiet.dev/v1/email-check)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), and whether the domain's DNS has valid MX, SPF, and DMARC records — giving a comprehensive deliverability and risk assessment.
Example use cases
Pre-send deliverability check for outreach
“Before I launch this cold email campaign, can you verify that sarah.jones@prospectcompany.com is actually deliverable — check the syntax, MX records, and whether the domain has SPF and DMARC set up?”
Signup fraud prevention screening
“A new user just registered with the email temp9182@mailnull.com — can you check if it's a disposable or burner address and whether it would even receive mail?”
B2B lead email quality audit
“I have a lead with the contact address support@bigclient.io — can you tell me if that's a role account, whether the domain has proper mail server records, and if the email is likely to bounce?”
Technical details
Endpoint
GEThttps://company-enrich.agentdiet.dev/v1/email-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, real-time email health check that goes beyond simple syntax validation — especially when you need live DNS MX, SPF, and DMARC record verification alongside disposable provider and role account detection in a single call. Ideal for B2B lead enrichment pipelines, signup fraud prevention, and pre-campaign deliverability audits. Prefer this over generic SMTP ping tools when DNS policy compliance (SPF/DMARC) matters to your use case.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the domain's name servers are unresponsive
- Unknown or very new domains may lack MX/SPF/DMARC records, returning empty results rather than an error
- Payment failure (HTTP 402) if USDC balance is insufficient for per-call billing
- Rate limiting if too many requests are sent in a short period
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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