mailcow-dockerized/data/conf/nginx/mailcow_auth.conf

server {
  listen 9082 ssl http2;

  ssl_certificate /etc/ssl/mail/cert.pem;
  ssl_certificate_key /etc/ssl/mail/key.pem;

  index mailcowauth.php;
  server_name _;
  error_log  /var/log/nginx/error.log;
  access_log /var/log/nginx/access.log;
  root /mailcowauth;
  client_max_body_size 10M;

  location ~ \.php$ {
    client_max_body_size 10M;
    try_files $uri =404;
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass phpfpm:9001;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param PATH_INFO $fastcgi_path_info;
  }
}