RewriteEngine On
   RewriteCond %{HTTPS} off
   RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

   Alias /email /usr/share/roundcubemail

  # Define who can access the Webmail
  # You can enlarge permissions once configured

  <Directory /usr/share/roundcubemail/>
     <IfModule mod_authz_core.c>
        # Apache 2.4
        Require local
        Require all granted
     </IfModule>
     <IfModule !mod_authz_core.c>
        # Apache 2.2
        Order Deny,Allow
        Require all granted
        Allow from all
     </IfModule>
  </Directory>