You can add subfolders to your email inbox to organize all your incoming emails. Click the actions for inbox icon next to the folder “Inbox”, and then select “Add new folder” from the dropdown. Enter a name for the new folder and click “Add”. Your new folder will appear under "My folders".
Tip: you can just drag and drop emails to move them from your inbox to another folder or create filter rules to automatically reroute incoming emails to specific folders.