1 of 1 routes on responsive originsmailcheck.hergertsynthora.com
mailcheck.hergertsynthora.com
Email address validation without sending mail: RFC syntax check, live MX lookup, disposable-domain detection (daily-refreshed blocklist), role-account and free-provider flags, gmail normalization, deliverability hint. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. SYNTHORA.
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registry calls / 30d