Manipulating folders is quick and easy in Aqua Mail. First, you need to open the Inbox of the account for which you will be adding, editing or deleting folders. Then, swipe open the left side pull-out menu and tap "Manage folders". Inside the folder manager, tap the icon for New Folder in the top right and select a name for it. If you want your folder to be synchronized you'll need to set this up by tapping on the folder's name and choosing one of the settings listed. Learn more about folder synchronization options here.

If you decide no longer need one of your folders, simply tap the Trashcan icon and you'll be prompted to delete it. Keep in mind you cannot delete server folders such as those your account has by default.