This happened last night and just today. I use Mail for my Gmail account, with it set up on Exchange for push. Last night I sent myself an email from my parent's Mac. It had some info I needed for the sat nab. I opened up the email in my iPhone in the car and looked at it. Not sure what I accidentally pressed but as I glanced back at my phone it was whooshing off somewhere (bin/another folder...) Searched for a good 5 mins in vain to find its location and eventually had to get the email sent to me again. I've just checked my Gmail account in a browser and it's sat there along with the one I had resent in my inbox? And then this morning. I had an email from Incase regarding an order that just...disappeared. Found it in 'All Mail' but then it disappeared from there! Went into Gmail on a browser and it was sat there in my inbox.. What's going on.