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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 cve-intel.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 presence.
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://cve-intel.agentdiet.dev/v1/email-check)
Output
Returns a structured object indicating whether the email address is syntactically valid, whether the domain belongs to a known disposable/burner email provider, whether the address is a role account (e.g. info@, admin@), and the live DNS lookup results for MX, SPF, and DMARC records — allowing the caller to assess whether the address is genuinely deliverable and properly authenticated.
Example use cases
Pre-outreach lead email validation
“Before I send my sales sequence, check if the email address mike.harris@techstartup.io is actually deliverable — I need to know if the domain has MX records and whether it's flagged as a burner or role account.”
Sign-up fraud detection
“A user just registered with the email temp123@mailnull.com — can you check if it's a disposable or throwaway email provider so I can decide whether to allow the account?”
Email domain DNS health audit
“I need to know if the domain used by support@bigcorpinc.com has proper email authentication set up — check whether it has valid SPF and DMARC records configured.”
Technical details
Endpoint
GEThttps://cve-intel.agentdiet.dev/v1/email-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call email check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC verification — rather than using separate tools for each check. It is particularly well-suited for B2B lead enrichment pipelines, pre-send email campaign validation, fraud detection at signup, and any agentic workflow that needs to confirm email deliverability and domain authentication status before taking action.
Side effects
- Invalid or missing email parameter returns an error
- DNS lookup timeout if the domain's nameservers are unresponsive
- False negatives on newer disposable providers not yet in the blocklist
- Domain exists but has no MX records, resulting in undeliverable classification
- Payment required error (HTTP 402) if the x402 micropayment is not properly authorized
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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