Have had my Dink since the end of June and constantly have had problems logging into yahoo emails via the android email application. Even called Verizon tech support and they were totally clue less to the problem and solution. Well, with in two mins on the internet, I looked up my exact problem, found the bug and a few possible solutions. The number one issue/solution is a bug or quirk with yahoo mail. Seems they wont allow you to access yahoo mail via wi-fi. The simplest solution is to turn the wi-fi OFF on your Dink and you are able to send and receive yahoo emails error free. Wish they would correct this, but at least now I know why I was getting all the log in errors and authentication errors!
