Email Storage Not Updating

1.Update the storage manually:Open Outlook and click “File” > “Messages” > “Cleanup Tools” > “Mailbox Cleanup “.
In the “Mailbox Cleanup” window, click “View Mailbox Size”.
After deleting unwanted emails or folders, click “Clean Now” to update the storage space. 
2. Check Deleted Messages Folder: Open the “Deleted Messages” folder and empty the messages in it.
Right-click the “Deleted Messages” folder and select “Empty Folder.
3. Check Archive Settings: Open Outlook, click “File” > “Messages” > “Cleanup Tools” > “Archive”. “Check the archive settings.
Check the archive settings to ensure that old messages have been properly archived and storage space freed up.
4. Rebuild the Outlook profile: Open Control Panel > Mail > Show Profiles.
Delete the existing profile and recreate it.
Restart Outlook and reconfigure the account. 
5. Using the Outlook Web App: Open a browser and access the Outlook Web App. 
Log in to your account and check that the storage is updating properly.
6. Contact Microsoft Support: If none of the above methods work, it is recommended to contact the Microsoft Support team with detailed error messages and screenshots for further assistance.