server {
    listen 80;
    absolute_redirect off;

    root /var/www/html/manager;

    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

    location /manager {
        return 301 /;
    }

    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }

    location ~ \.(tpl|yml|ini|log)$ {
        deny all;
    }

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location /webmail {
        alias /var/www/html/webmail;
        index index.php;
        try_files $uri $uri/ @webmail;

        location ~ \.php$ {
            include fastcgi_params;
            # Mitigate httpoxy vulnerability, see: https://httpoxy.org/
            fastcgi_param HTTP_PROXY "";

            fastcgi_buffers 8 16k;
            fastcgi_buffer_size 32k;

            client_max_body_size 24M;
            client_body_buffer_size 128k;
            fastcgi_param SCRIPT_FILENAME $request_filename;
            fastcgi_pass php-fpm;
        }
    }

    location @webmail {
        rewrite /webmail/(.*)$ /webmail/index.php?/$1 last;
    }

    location ~ ^/index\.php(/|$) {
        fastcgi_pass php-fpm;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        internal;
    }

    location /rspamd/ {
        proxy_pass http://filter:11334/;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}