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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/DMARC record checks to assess deliverability and inbox risk.
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/disposable-email)
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. admin@, noreply@), and live DNS lookup results including MX record presence, SPF record content, and DMARC policy — giving a comprehensive deliverability and inbox risk assessment.
Example use cases
Signup fraud screening for SaaS onboarding
“Before I activate this new user account, check if the email address 'user123@guerrillamail.com' is from a disposable or burner provider and whether it has real MX records — I want to block throwaway signups.”
B2B lead list email hygiene
“I've got a prospect email 'sales@acmecorp.io' — can you verify it's a legitimate deliverable address, check if it's a role account, and confirm the domain has SPF and DMARC records set up properly?”
Cold outreach deliverability pre-check
“Before I add 'cto@startup.example' to my outreach sequence, verify that the domain has working MX records and that SPF and DMARC are configured — I don't want to hurt my sender reputation.”
Technical details
Endpoint
GEThttps://company-enrich.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a multi-signal email validation that goes beyond simple syntax checking — specifically when you need live DNS MX/SPF/DMARC verification combined with disposable provider detection and role account flagging in a single call. Ideal for pre-send deliverability audits, fraud-prevention signup flows, and B2B lead enrichment pipelines where inbox reachability and sender reputation protection matter.
Side effects
- Missing or malformed email parameter returns a 400/validation error
- DNS lookup timeouts may cause incomplete MX/SPF/DMARC results for slow resolvers
- Newly registered disposable domains not yet in the blocklist may pass the disposable check
- Private or internal email domains may return no public DNS records
- Payment failure via x402 returns a 402 response requiring USDC on Base
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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