Check a domain's MTA-STS setup (RFC 8461): the _mta-sts record, the HTTPS policy...
https://api.lookproof.dev/v1/mail/mta-stsOverview
Check a domain's MTA-STS setup (RFC 8461): the _mta-sts record, the HTTPS policy file with certificate check and no redirects, mode, max_age and whether every MX host is covered, plus the TLS-RPT record (RFC 8460). Use when an agent must tell whether inbound mail is protected against TLS downgrade, or why senders report MTA-STS failures for a domain.
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| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-27 22:25:17 | healthy | 402 | 413ms | |
| 2026-10-27 21:23:53 | healthy | 402 | 381ms | |
| 2026-10-27 20:11:36 | healthy | 402 | 235ms | |
| 2026-10-27 19:08:13 | healthy | 402 | 152ms |