Tap the “Mail” app on the iPad and then “Mailboxes.” That’s Apple’s term for folders. To organize your mail, tap “Edit,” and “New Mailbox.” Give your new mailbox a simple name like “Important Mail” and tap “Done.”
Now go back to the inbox and open an email. Above the email you’ll see five tiny icons in blue. The second one looks like a tiny folder. Tap the folder and then choose the mailbox you want to store it in. The mail zooms into place. Next time you want to find something fast, tap “Mailboxes” and tap your new folder.