Email Address Verify (MX, no SMTP)
email_mx_verifyRead-onlyIdempotent
Checks an email address without sending mail or opening SMTP: syntax, domain exists, MX records (or RFC 5321 A/AAAA fallback), RFC 7505 null MX, MX host resolves, disposable-domain list (~9.9k domains), role account (info@, support@) and free provider. Verdict deliverable_domain, risky, undeliverable or unknown. Cannot prove the mailbox itself exists. Use when an agent validates a signup, lead or contact email before using it. $0.01 USDC. Paid tool: call it once to get the x402 PaymentRequired object, then retry with params._meta["x402/payment"].
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| Yes | Email address to check, e.g. someone@example.com |