Jeff, you will likely lose your Comcast email account when you drop service with them. At least, that is what we were told. This means you’d lose all of your email messages and your contacts, so printing and/or exporting a list of your contacts and saving them to your computer is a good idea. Also, it might be a good idea to set up your Comcast email account with an email program like MS Office Outlook, Outlook Express, or Thunderbird so you can download and save your old emails to your computer before you get rid of Comcast. I would recommend gmail for your new email provider. I’ve never cared much for yahoo.