frank8809, We surely know the importance of having access to your email accounts. Let's look into options for getting this corrected. bearone21 provided a great step in removing and readding the account to your S5. Here is a link with the steps to remove :http://vz.to/1zKO3zv. If you are unable to re-add the account successfully, please share a few more details so we can help. Which email client is giving difficulty (i. e. hotmail, yahoo, msn)? Have you tried logging in your account via PC to check the log in credentials?