Mailbox quotas for Hosted Exchange mailboxes can be edited from within your online control panel. After logging in, select Exchange from the top menu.
Select the mailbox you wish to edit quotas for and select Limits from the menu. This will show the current mailbox size and restrictions.
You can edit the mailbox size and also the alerts that are sent when a mailbox nears its quota. To do this, click Edit at the bottom of the page. You can modify the following:
- Issue warning at: when the overall size of the mailbox reaches this value, a warning will be sent to the user
- Prohibit send at: when the overall size of the mailbox reaches this value, the user will be unable to send mail (inbound mail will not be affected unless the mailbox reaches the overall size limit)
- Size limit: this is the maximum size of the mailbox