Yes i see that no redirect by default, but something strange is also happend with redirect.conf, something is wrong here with default_server (duplicate) because of that the panel don’t run because ERROR:
2021/01/08 07:44:03 [emerg] 18#18: a duplicate default server for 0.0.0.0:80 in /etc/nginx/conf.d/site.conf:2
nginx-mailcow_1 | nginx: [emerg] a duplicate default server for 0.0.0.0:80 in /etc/nginx/conf.d/site.conf:2
Nothing has been changed inside of mailcow all is default. Only thing is cloudflare and as mentioned non-proxied domains don’t get touched.
Nginx makes a error when redirect.conf are included, so there is a miskake/error somewhere inside of it (see error above)
Duplicate of default_server is the problem here. Once in the standart nginx and once in redirect.