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Microsoft 365 - How do I see how much storage I have left and/or clean up my Mailbox?
Important: deleted messages that are no longer available in your account (including the recover deleted items process) cannot be restored.
Outlook on the Web
- Sign in to Outlook on the web.
- At the top of the page, select Settings/gear icon located upper right corner of your Outlook window.
- If prompted, select View all Outlook settings.
- Select Account | Storage (depending on your version of Outlook on the web, you may need to select General | Storage) option within left hand navigational pane.
- All your folders will be listed.
You will see the amount of storage you are currently using and have the ability to delete messages from any specific folder.
Important: Deleted items may be recovered using the Recover Deleted Items process.