I know most of you still use the macOS Mail App to manage your Email. These days I think many people use more than one Email account for different purposes. If you have several Email accounts in the Mail App, there may come a time when you need to Delete one of them. For future reference, this article explains how to Delete an Email account from the Mail App. It is a simple process, unless you are using that account on Devices in addition to your Mac. Then the deletion process becomes a little more involved.