1. Go to the Mail Manager section of the hosting Control Panel.
  2. Click on the numbers under Quota or Messages columns next to your mailbox.
  3. You can customize the following settings. 
    • Quota: Enter the maximum disk space in megabytes (MB)
    • Max messages: Set the maximum number of stored messages.
    • Send e-mail notification at: Choose the usage percentage that will trigger a warning email when the email account is nearing its limits
  4. Click Save.

Note that besides this custom notification, our system will always send a notification at 99% usage reached - this "99% usage" notification cannot be stopped/adjusted.