Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.
Api EndpointSecurityHealthy · 13 ms0.01 USDC0.01 USDC · eip155:8453 · USDC0.01 USDC · eip155:137 · USDC0.01 USDC · eip155:42161 · USDC+1 additional payment option
https://email-auth.use.x402atlas.com/check