Outlook Storage Full Despite Deleting Everything

Outlook storage doesn't just include your emails — it also counts calendar events, to-do lists, and other integrated features. Many users believe that clearing their inbox and deleted items is enough, but storage may still remain full due to data from other areas like the calendar and tasks.

I personally faced this issue and later discovered that a few emails with large attachments were consuming a significant portion of my storage. These attachments often go unnoticed but take up a lot of space.

So, make sure to identify and manage emails with large attachments to free up valuable storage space in Outlook.