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Email Domain DNS Validation & Classification
x402
Email Domain DNS Validation & Classification is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Validates and classifies an email domain via public DNS: checks MX hosts, mail provider, SPF/DMARC policies, and flags disposable/free-webmail/role-account status with a deliverability signal.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validate and classify an email DOMAIN from public DNS: MX hosts + mail-provider, SPF and DMARC policy, plus disposable / free-webmail / role-account flags and a deliverability signal. No SMTP probing of individual mailboxes (privacy + ToS).
Output
Returns MX host details, identified mail provider, SPF and DMARC policy text and verdicts, and boolean flags for disposable domain, free webmail service, and role-account pattern, plus an overall deliverability signal — all derived from public DNS without SMTP probing.
Example use cases
Example prompt
“Can you check whether the domain for 'contact@acmecorp.io' is legitimate — I want to know if it has proper MX records, SPF and DMARC policies set up, and whether it's flagged as a disposable or free-webmail provider before I add it to our mailing list?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/enrich/emailWhen to prefer
Use this endpoint when you need fast, privacy-safe email domain validation without SMTP probing — ideal for pre-screening leads, validating sign-up emails, filtering disposable addresses, or checking mail infrastructure compliance before outreach. Prefer over full SMTP verification when ToS compliance or user privacy is a concern.
Side effects
- Domain does not exist in DNS — returns not-found or NXDOMAIN indicator
- Domain has no MX records — deliverability signal reflects undeliverable
- Malformed email or domain input — returns validation error
- Transient DNS lookup failure — may return timeout or partial result
- Rate limiting or payment failure — 402 or 429 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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