Connection to storage server failed (Roundcube)

[gary15]

Imap/pop3 not working correctly

Edit file /etc/dovecot/conf.d/10-master.conf and add directive process_limit with the amount of processes you want to use (by default the limit is 100) to service imap-login. For example, if you want to raise the limit to 200: service imap-login { inet_listener imap { } inet_listener imaps { } process_limit = 200 } Don’t forget to restart dovecot after the change: systemctl restart dovecot

Found this fix.