Fortunately, KMail needs not consist of the inbox folder only. You can create as many folders as you like to keep your messages organized and easy to find.
To create a folder in KMail:
- Select Folder | New Folder... from the menu.
- Type the name of your folder.
- Under Belongs to:, select under which folder KMail should place the new one.
- If you want a top-level folder, make sure Top Level is selected.
- If you want to create a sub-folder, select the folder under which the new folder should appear.
- Click OK.
To make the folder you have created easier to spot, you can assign a custom icon to it.

