Sure. I noted you did not use your own domain and your ISPConfig server FQDN is not using LE SSL certs.
Hello, can i apply this method ? Is-it safe ? Code: I know this is 2 years old, but I think the below still might help a few :) I ran into the same issue today. The fix was the following (On a older Debain Stretch) apt remove --purge roundcube-core (select delete database) apt remove --purge roundcube rm -R /etc/roundcube/ rm /etc/dbconfig-common/roundcube.conf rm /etc/apache2/conf-available/roundcube.conf mysql (Delete the roundcube database if it's still there and the roundcube user) ### now install roundcube core ### apt install roundcube-core ### finially roundcube ### apt install roundcube Thank's
I have found the solution, my roundcube.conf file was empty. i complete with one i have then i restart apache2 service nano /etc/apache2/conf-enabled/roundcube.conf Thank you very much for all
