cloudflare
tcp/443
Open service 172.67.180.142:443 ยท mail.letterbird.app
2026-01-10 16:00
HTTP/1.1 526 <none> Date: Sat, 10 Jan 2026 16:00:59 GMT Content-Type: text/plain; charset=UTF-8 Content-Length: 15 Connection: close Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Expires: Thu, 01 Jan 1970 00:00:01 GMT Referrer-Policy: same-origin X-Frame-Options: SAMEORIGIN Server: cloudflare CF-RAY: 9bbd63f51bbc3620-FRA alt-svc: h3=":443"; ma=86400 error code: 526