ispmail-buster-ansible/ansible/roles/ispmail-webmail-apache-roundcube/templates/vhosts/https.j2

<VirtualHost *:443>
  ServerName {{ispmail_fqdn}}
  DocumentRoot /var/lib/roundcube

  SSLEngine on
  SSLCertificateKeyFile /etc/ssl/private/mailserver.pem
  SSLCertificateFile /etc/ssl/certs/mailserver.pem

  # When using Let's Encrypt use these line instead:
  # SSLCertificateKeyFile /etc/letsencrypt/live/{{ispmail_fqdn}}/privkey.pem
  # SSLCertificateFile /etc/letsencrypt/live/{{ispmail_fqdn}}/fullchain.pem
  </VirtualHost>