Hello,
is that normal? It shows used space as unknown.
thanks for reply
If disk quota is set to unlimited, dovecot may sometime show that.
Check these 2 posts once (old, but may still be relevant).
No quota in roundcube - Plesk Forum | Disk Usage Unknown - Roundube Forum
Yes, because that account doesn’t have a quota defined. If you edit the mail account for that user and add a quota, you will see the used space for that quota in Roundcube.
If you prefer to see “Unlimited” instead of “Unknown”, edit /etc/roundcube/config.inc.php
and add the following directive:
$config['quota_zero_as_unlimited'] = true;