Hi there and welcome
As the first step, can you please hold the power button on the phone until a menu shows, and choose power off.
Then power on the phone and tell me if email now synchs correctly please.
If you click on my link below, are you able to sign into your account there?
We have been here for 14 years, with a Triple A rating from the BBB
I can guarantee you you're not being scammed...
Can you do the instructions I asked?
It is just a web link... it takes you to the yahoo site, but it is no problem, in the event you change your mind you can return here at any time.
If you would like any additional information or assistance, please do not hesitate to let me know.
And if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.