This support article describes how to view Disk Space usage per email account (mailbox) for your Plesk hosting.
- Log into your Conetix or Plesk Control Panel.
- From the left hand menu, click on Mail:
On the right hand side, you'll see the usage per mailbox listed and if any limit exists.
- If you've deleted emails and want to see the changes, click on Refresh Usage Stats to recalculate the usage: