Checking the storage quota (mailbox size) of your @northwestern.edu (Office 365) account using Outlook on the Web
Your Exchange mailbox has a finite storage quota (100 GB for faculty and staff). It's good practice to monitor your quota and delete unnecessary email messages to keep your mailbox well below quota.
- Log in to your Office 365 account at https://office365mail.northwestern.edu.
- In the top right corner click the gear icon, then at the bottom click View all Outlook settings.
- From the left pane, select General > Storage.