Clearing out unwanted emails will open up your disk space. This is easy to do by following these steps. 

  1. Navigate to Email Accounts.
  2. Locate your email address and click on the manage button on the right.
  3. You should then click the link for Free up email storage on the right side.
  4. Select the Manage link on the right of a folder you wish to manage.
  5. Select the option you wish to use to delete email in that email box. These options are as follows:
    1. 1 year old or more – delete emails older than one year in this folder.
    2. 30 MB is size or more – delete old emails in this folder until the disk usage is 30 MBs.
    3. Previously viewed – delete all previously viewed emails in this folder.
    4. All Messages – Clear out the entire email folder. 
    5. Custom Query (more advanced) instructions: https://go.cpanel.net/doveadm_search_query
  6. Click the Delete Permanently button to clear things out.

That’s it, you’ve just cleared out emails in this folder and opened up some disk space for your account.