Roundcube DATABASE ERROR: CONNECTION FAILED Date posted : 22/02/2019 This issue happens on a newly installed VestaCP due to some bugs. We’ve noticed this happens in Ubuntu 18.04 installation. If you check the logs, you will see below errors:- The default namespace found in /etc/dovecot/dovecot.conf already included the inbox = yes option. So there… Continue Reading Roundcube DATABASE ERROR: CONNECTION FAILED