Hi. I'm using an Iphone 6 running the newest 8.4 ios. I'm going abroad in a few days so I wanted to setup my phone that the only apps using cellular data are Messages and Whatsapp. I toggled all the apps off in the cellular data settings. I even turned everything off in the notifications area to get rid of all the the push settings. Bu this isn't helping. I'm still receiving my e-mails with push. I get the notification for my email at the top. However when clicking on it, it launches Inbox app but I can't read the mail. Than it sais cellular data is off for this app. Which is true but it's still pushing new e-mails so cellular data for Inbox is still on? Please help, I've been trying for hours..