# Public email-domain DNS readiness

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Inspect one public ASCII domain's live MX, null MX, or implicit A/AAAA fallback with resolver/time/TTL evidence. Domain only; no email address, mailbox, deliverability, disposable/free-provider or role classification. x402 only.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- Inspect public-domain mail-routing DNS records with bounded live resolver evidence.

## Outside this profile
- Full email validation, mailbox existence, SMTP delivery tests, disposable/free-provider/role classification, MX-host reachability, arbitrary DNS record types, private DNS, internationalized Unicode input, or guaranteed DNS freshness.

Proposed nominal USD 0.002 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/email-domain-readiness.json)
- [Input schema](/reference/schemas/email-domain-readiness.input.json)
- [Output schema](/reference/schemas/email-domain-readiness.output.json)
- [Fixed example](/reference/examples/email-domain-readiness.json)
- [Complete HTML reference](/discover/tools/email-domain-readiness)