Email Disk Usage – cPanel

Tutorial: login from the Client Area or the direct link.

Find Email section and click the Email Disk Usage.

Account
Select the email account you want to view.

A
For each folder in the e-mail account, you can view the number of messages and the disk usage amount.

B
If you want to free disk space, under Actions, click Manage.

Under Messages to delete, select one of the following filters to use for the messages you want to delete:

1 year old or more: This option deletes any messages that are older than one year.
30 MB in size or more: This option deletes any messages that are 30 MB or larger.
Previously viewed: This option deletes any messages that have already been opened.
All messages: This option deletes all of the messages in the folder.
Custom query: This option enables you to use Dovecot search queries to select specific sets of messages. For example, you can select all messages that contain a specific word in the subject line, all messages that are more than a week old, etc. For information about how to create Dovecot search queries, please see https://wiki2.dovecot.org/Tools/Doveadm/SearchQuery.

Click Delete Permanently.
– cPanel deletes the specified messages.