If you’re unhappy with your current email address, there are a few ways to change it. The first option is to visit xfinity.com/email and enter in your current email address. You’ll be prompted to enter in a new password, and then you’ll be able to select your new email address. If you don’t want to use xfinity.com/email, the second option is to contact customer service at 1-800-xfinity (1-800-934-4357). They’ll be able to help you change your email address on your account without having to go through xfinity.com/email. ..