Adding Xfinity email to an iPhone is an easy process. All you need to do is open Settings and add the account using the username and password. However, sometimes it may not happen automatically, and you need to enter server settings manually. But if the issue still persists and you see a “cannot get mail” error message, disabled third-party app access might be the reason. Xfinity may block third-party app access to the inbox. It has an option known as "third-party access sec