Hi, I'm John! I will help you with this.
This usually happens when there are hidden or backed-up items taking space in the cloud, even if the main OneDrive folder looks empty.
To help you get your email working again, let’s check a few places where space might be used up:
Check your OneDrive “Recycle Bin” online:
- Sometimes deleted files still sit in the cloud recycle bin and continue to count toward your storage.
- Go to https://onedrive.live.com
- Sign in > look on the left for Recycle bin
- If it has items, select Empty recycle bin
Check “Backups” in OneDrive online:
- Even if you don’t use OneDrive actively, Windows or your phone may have automatically backed up Desktop/Documents/Pictures.
- On https://onedrive.live.com click the Settings (gear icon) > Options
- Look for Backup
- If you see any PC backups listed, you can delete them to free space.
If you can, could you share what the storage breakdown shows on https://onedrive.live.com/managestorage
Click "Add comment" to let me know.
Regards,
John J.D.