2020/07/09 01:07:23 [error] 10961#0: *52 upstream prematurely closed connection while reading response header from upstream, client: 125.30.12.117, server: _, request: "GET /SOGo/so/hspencer@tsundoku.net/Preferences HTTP/1.1", upstream: "http://127.0.0.1:20000/SOGo/so/hspencer@tsundoku.net/Preferences", host: "tsundoku.net", referrer: "https://tsundoku.net/SOGo/so/hspencer@tsundoku.net/Mail/view" 2020/07/09 01:15:28 [error] 10961#0: *277 upstream prematurely closed connection while reading response header from upstream, client: 125.30.12.117, server: _, request: "GET /SOGo/so/hspencer@tsundoku.net/Preferences HTTP/1.1", upstream: "http://127.0.0.1:20000/SOGo/so/hspencer@tsundoku.net/Preferences", host: "tsundoku.net", referrer: "https://tsundoku.net/SOGo/so/hspencer@tsundoku.net/Mail/view" 2020/07/09 01:16:39 [error] 10961#0: *300 upstream prematurely closed connection while reading response header from upstream, client: 125.30.12.117, server: _, request: "GET /SOGo/so/hspencer@tsundoku.net/Preferences HTTP/1.1", upstream: "http://127.0.0.1:20000/SOGo/so/hspencer@tsundoku.net/Preferences", host: "tsundoku.net", referrer: "https://tsundoku.net/SOGo/so/hspencer@tsundoku.net/Mail/view" 2020/07/09 01:23:29 [error] 10961#0: *1471 upstream prematurely closed connection while reading response header from upstream, client: 125.30.12.117, server: _, request: "GET /SOGo/so/hspencer@tsundoku.net/Preferences HTTP/1.1", upstream: "http://127.0.0.1:20000/SOGo/so/hspencer@tsundoku.net/Preferences", host: "tsundoku.net", referrer: "https://tsundoku.net/SOGo/so/hspencer@tsundoku.net/Mail/view" 2020/07/09 01:30:50 [crit] 10961#0: *1768 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.108, server: 0.0.0.0:443 2020/07/09 01:30:51 [crit] 10961#0: *1770 SSL_do_handshake() failed (SSL: error:14094085:SSL routines:ssl3_read_bytes:ccs received early) while SSL handshaking, client: 64.41.200.108, server: 0.0.0.0:443 2020/07/09 01:40:51 [error] 10961#0: *2065 upstream prematurely closed connection while reading response header from upstream, client: 125.30.12.117, server: _, request: "GET /SOGo/so/hspencer@tsundoku.net/Preferences HTTP/1.1", upstream: "http://127.0.0.1:20000/SOGo/so/hspencer@tsundoku.net/Preferences", host: "tsundoku.net", referrer: "https://tsundoku.net/SOGo/so/hspencer@tsundoku.net/Mail/view"