I just bought a new J7 running 6.0.1 on Boost Mobile's network, last week. It is not displaying visual notifications of received emails at the top of the notification area on the home screen. I used Samsung.com's live chat to troubleshoot this with the online tech support, and the tech remotely accessed my phone to investigate. Sending myself test emails showed that the tech's efforts did not work. The tech's only solution is to delete both the Samsung app and Google app, and then to do a factory reset. As I just bought the phone last week and spent days setting it up the way I want it, I don't want to factory reset it and have to go through all that work again. Does anyone have a better solution?