Therefore, you should be aware of the consequences of this action. When we delete a folder in Outlook, it gets rid of the emails, attachments, and contacts that were saved in it. What Happens When You Delete a Folder in Outlook? There might be duplicate emails in the folder that you wish to get rid of.You might be running low on space and you wish to get rid of any unwanted file.It can have sensitive information and you wish to permanently delete it.You could have set certain rules or filters on the folder that is blocking your emails.It could have been spammed with unwanted emails and you don't wish to access it.The folder might not be active anymore and you no longer need it.The following are some of the major situations why people choose to delete Outlook folders. Bonus: How to Create and Manage a Folder in Outlook?īefore we let you know how do you delete a folder in Outlook, let's discuss a few things in advance.