Years ago, I moved from one city to another. My ISP (Internet Service Provider) was SBC Internet and I was very content at the time using their freely provided email service. However, eventually I moved to another city and SBC was not available, only Verizon. It was then that I realized I'd lose my SBC email address and immediately saw the drawbacks to using my ISP email. By the way, the same goes for simply switching Internet Service Providers, without moving. Some of the drawbacks I were:...