If you want to stay informed on the space usage in your account, the Outlook settings include a page that shows how much storage you are using and options to free up space. This guide will teach you the steps to check the storage usage of your Outlook.com mailbox account on Windows 11, 10, macOS, or Linux.

Check Outook mailbox size limit online

To determine the storage usage of your Outlook mailbox, use these steps: Once you complete the steps, the settings page will display the storage usage and how much space you have left in your account.

If you’re running low on space, Microsoft offers an additional 50GB when you sign up for a Microsoft 365 subscription. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.