If you’re like most people, you probably have a Junk Mail folder on your iPhone. This is where you store all the spam and junk mail that you don’t want to see. To delete all the spam and junk mail from your Junk Mail folder, open up your Settings app and click on the Junk Mail tab. Then, select the folders that you want to delete from the list. Once you’ve selected the folders that you want to delete, press Delete to remove them from your Junk Mail folder.