server {
        listen 80;
        listen [::]:80;
        
        server_name mail.example.com webmail.example.com autodiscover.* autoconfig.*;
        
        ;location ^~ /.well-known/acme-challenge/ {
        allow all;
        root /var/lib/letsencrypt/;
        default_type "text/plain";
        try_files $uri =404;
        }
        
        return 301 https://$host$request_uri;
}

server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;
        
        server_name mail.example.com webmail.example.com autodiscover.* autoconfig.*;
        
        ssl_certificate /opt/mailcow-dockerized/data/assets/ssl/fullchain.pem;
        ssl_certificate_key /opt/mailcow-dockerized/data/assets/ssl/key.pem;
        ssl_dhparam /opt/mailcow-dockerized/data/assets/ssl/dhparams.pem;
        ssl_session_timeout 1d;
        ssl_session_cache shared:SSL:10m;
        ssl_session_tickets off;

        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
        ssl_prefer_server_ciphers off;

        ssl_stapling on;
        ssl_stapling_verify on;
        ssl_trusted_certificate /opt/mailcow-dockerized/data/assets/ssl/chain.pem;
        resolver 1.1.1.1:53 1.0.0.1:53 '[2606:4700:4700::1111]:53' '[2606:4700:4700::1001]:53' valid=300s;
        resolver_timeout 30s;

        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header Referrer-Policy "strict-origin-when-cross-origin";
        add_header Content-Security-Policy "upgrade-insecure-requests; default-src https:" always;
        add_header Feature-policy "accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'" always;       

        location ^~ /.well-known/acme-challenge/ {
               allow all;
               root /var/lib/letsencrypt/;
               default_type "text/plain";
               try_files $uri =404;
        }

        location /Microsoft-Server-ActiveSync {
                proxy_pass http://127.0.0.1:8080/Microsoft-Server-ActiveSync;
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_connect_timeout 75;
                proxy_send_timeout 3650;
                proxy_read_timeout 3650;
                proxy_buffers 64 256k;
                client_body_buffer_size 512k;
                client_max_body_size 0;
        }

        location / {
                proxy_pass http://127.0.0.1:8080/;
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto $scheme;
                client_max_body_size 0;
        }
}