1
Log into your Yahoo! Mail account.
2
Create a new folder. On the left panel, you can find a "Folders" menu; click on it to show all your current folders. Click on the icon beside it to create a new folder.
3
Name the new folder. Make it short but descriptive. You would want to know what’s inside the folder just by looking at its name.
4
Create more folders. Repeat steps 2 and 3 as needed.
Resource by : Wikihow
You can install in Google Play
