My email linked to my account has been deactivated. How do I change it to my current email address
If you are referring to updating your contact information in your My Verizon account, that's under "Manage Account Settings". If you want to change your email address for your forum account, go to your small forum avatar icon in the top right, then Account and Privacy settings. Or if you're on your basic profile page, pick "Edit Profile" from there.
