How To Delete ProtonMail Accounts

There are all kinds of Email Apps and services available to Mac users. The most secure Email service I can find is ProtonMail. I have a ProtonMail account which I use on an occasional basis. If you wish to keep Email secure, then ProtonMail should be at the top of your list. If you have a ProtonMail account and no longer need it, then read this article describing what your options are for deleting it.