CPANEL TUTORIALS & GUIDES

Using the Email Disk Usage Interface in cPanel

cPanel Email Disk Usage displays the storage consumed by each mailbox and its folders, helping identify messages that use excessive space. Review folder sizes, sort mail by age or size, and permanently remove selected messages to free storage and keep email accounts within their assigned quotas.

Updated: June 20, 2026
By: RSH Web Editorial Staff

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cPanel - Email - Disk Usage

This feature allows you to view all of your mailboxes and remove old or large messages

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Account

Select the account to modify from the Account menu.

Note: The Account menu only appears for cPanel accounts. It will not appear in Webmail accounts.

Explore RSH Web Services cPanel guide for beginners. Learn how to set up and manage your hosting environment, domains, and emails to improve website performance Disk Usage

Search

Use the Search text box to search for specific mailbox names.

The mailboxes table

The mailbox table contains a list of mailboxes. You can sort this information by the name, number of messages, or disk usage.

Mailbox Name - The name of the mailbox.

# of Messages - The number of messages for the address or in the mailbox folder.

Disk Usage - The disk usage for each address or mailbox, in bytes, kilobytes (KB), megabytes (MB), or gigabytes (GB).

Remove messages

To remove messages, perform the following steps:

1) Click Manage.

Select one of the following removal options from the menu:

  • • 1 year old or more
  • • 30MB in size or more
  • • Previously viewed
  • • All messages
  • • Custom query - This option allows you to customize your removal option with the Dovecot search query format.
    For example, to remove all messages larger than 10MB, select this option and enter larger 10M in the text box.
    For more information about how to use the Dovecot search query format, read Dovecot’s Search Query Format documentation.

Click - "Delete Permanently"

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