Is there a third party iPhone app that enables you to edit the subject line of a received email? More specifically: I don't meant the subject line of a sent email. I would like to change the subject line of received email so that I can make them more meaningful (e.g. for order confirmations, to take out anything extraneous so that the order number is visible on a small screen). You can't do it in the built-in app. You can do it on with the Mac mail app, although it involves a few steps. But is there any way to do it on an iPhone?