I have two email accounts set up in the stock mail app: a personal iCloud and a school Gmail. I've never had any issues with ether. Both are set to fetch every 15 minutes, but since iOS 8 I noticed that when I opened the Mail app, it would say "Last Sync Yesterday" a lot, but I was still getting my Mail, so I thought it was a bug. Now I'm getting far more emails (20+ a day). I got up this morning and check my phone's lock screen and there was nothing. I went in the mail app and manually went into my school inbox and then I received two messages that had been sent an hour ago. Is there any reason this might be happening? That is unacceptable.