server {
                server_name mail.mydomain.com;
                listen 443 ssl;

                location / {
                        proxy_pass http://127.0.0.1:8080;
                        proxy_redirect    default;
                        proxy_set_header  Host $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-Host $server_name;
                        proxy_set_header  X-Forwarded-Proto $scheme;
                }

                ssl_certificate /etc/letsencrypt/live/mydomain.com/fullchain.pem;
                ssl_certificate_key /etc/letsencrypt/live/mydomain.com/privkey.pem;
        }