I use Xfinity Connect for email and for email storage and I'm becoming worried that I might lose some of my important emails, so I'd like to save them all (batch process would be easiest for me).to my laptop. What's the best way to accomplish what I want?
Enable the account in a desktop email client like outlook, Thunderbird or something like that. Once done, you can create local folders and move your important messages to them.
Select the email(s) you want to save, click the hamburger icon on the toolbar, and choose Save as file from the menu.