Exchange Email: How to check your mailbox quota usage?

You can check most recent quota usage of your Exchange account by using Outlook Web App (OWA) or Microsoft Outlook:

• Microsoft Outlook
• Outlook Web App 2013 (OWA)
• Outlook Web App 2010 (OWA)

Microsoft Outlook

1. In the "Mailbox Cleanup" section, click Cleanup Tools.
2. Select Mailbox Cleanup... from the drop-down list.
3. Click View Mailbox Size....
4. After viewing your mailbox usage, close the pop-up windows.
5. Click the Home tab brings you back to the messages pane.

Outlook Web App 2013 (OWA)

1. In the upper right of the window, select the gear icon, and then select Options.
   
2. On the left, highlight account. You will see your mailbox's storage space under Mailbox Usage.
   
3. Click the arrow button goes back to your mail box

Outlook Web App 2010 (OWA)

1. When you are in the "Mail' view of OWA, hover your mouse pointer over your displayed name which is just above your Inbox(see the example below). A pop-up daughter window will be displayed showing the most recent quota usage of your mailbox.