I’m using SOGo to access my webmail but the Roundcube webmail “page” is still present, even if the nethserver-roundcube module is not installed. I’ve followed the remove instructions at the bottom of this.
Yes you can rename with mv /etc/httpd/conf.d/roundcubemail.conf /etc/httpd/conf.d/roundcubemail.conf.bak and then restart httpd with systemctl restart httpd: with this commands you’ll not able to reach the roundcube page yet.
Well, how about that, one hour after I’ve asked for help I receive a solution. Impressive support from the nethserver community!
Many thanks @federico.ballarini, your suggestion solved the problem!