retaining my AT&T email address

I have had an AT&T internet account for eight years. I needed a speedier service. AT&T does not serve my neighborhood with their speedier internet so I had to switch to Comcast. I want to retain my AT&T email address (I'm a federal gov't contractor; I have to maintain dozens of e-accounts of various natures and I would go crazy trying to change my email address in all those 'profiles')

I'm no longer using my AT&T account for internet services. The account costs me $61 a month. Is there any way in which I can 1- retain/ continue to use my AT&T address, but 2- get rid of all or most of that $61 a month charge?

Thanks for your help.