Email DNS Preflight

https://email-dns-preflight-x402.copper-crate.workers.dev/.well-known/agent-card.json

● healthy

Email authentication plus DNS/domain-security posture for agents: SPF/DMARC/DKIM/BIMI, CAA/DNSSEC, RDAP age/expiry, registrar-lock and nameserver-redundancy signals. DNS-level only; no SMTP mailbox-existence or inbox-delivery claim.

Transport

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Protocol

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Price

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How to call

A2A endpoint (JSONRPC)

https://email-dns-preflight-x402.copper-crate.workers.dev/a2a

Agent card

https://email-dns-preflight-x402.copper-crate.workers.dev/.well-known/agent-card.json

Listed in

Directories this entry was found in.

wellknown ↗