All day since Saturday, I've been getting sign in failed notifications from the samsung galaxy s4 mini email app on my verizon.net email account. It says the server password has changed and asks me to enter the new one. My password has not changed, but it won't take it. I'm getting email, and I can log into my email and my verizon accounts using the browser. Rebooting my phone doesn't help. Does anyone know what is going on?