Mailboxes use disk space to store your email. This will contribute over time to your overall disk space usage. To see how much disk space a mailbox is using, follow these steps:
- Log in to the Account Control Center (ACC)
- Click E-Mail in the left sidebar, then click E-mail Settings in the drop-down
- Click the Mailboxes currently configured link
- You can find the mailbox's disk space usage in the Disk Space column
