Email folders allow you to save and organise your emails to move them out of your inbox.
There are 2 ways you can create email folders:
Click on the "Add Folder" link and enter the folder name, then click "Add Folder".
To move an email into a folder, click on the check box, then click on the "Folder" icon that appears at the top right.
Select the folder to move it to, then the "Move Emails" button.