All mailboxes are created with a predefined quota, depending on the hosting plan of the account. You can modify the disk space quota and the maximum allowed messages (inode quota) for each mailbox as needed.To adjust the disk quota for a given mailbox, please follow these steps:
Open your web hosting Control Panel's "Mail Manager" section.
Follow the link under the "Quota usage" column next to the mailbox in question.
Specify the maximum allowed space in the "Quota:" field for the mailbox and click on the "Save" button.
To adjust the maximum allowed messages (inode quota) for the mailbox, just specify the new value in the "Max messages:" field and click on the "Save" button.
The interface also allows you to set an e-mail notification if any of the resources (disk quota or inode quota) reach a certain level. Just set the desired level/percentace usage reached, and click on the "Save" button. 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.