This article explains how to manage folders in webmail, including creat, remove and hide.

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Click the Settings menu in top left and then click on Folders in the top right of the screen. You will now be presented with a list of the folders in your account.

To Create A Folder

In the top right you will see Create / Delete / Empty or click on the folder you wish to make a sub-folder on.

Select Create to make a new folder. 

To Delete A Folder

Click on the folder to remove.  In the top right you will see Create / Delete / Empty. 

Select Delete and the folder and its contents will be gone.

Subscribed & Hidden Folders

Each folder can either be subscribed or unsubscribed in Settings > Folders.  If you unsubscribe a folder by unticking / moving the slider, then the folder and its content will be invisible to the webmail client.