I am running Outlook 2020 under W7 and have changed my email address. I still have my old address plus the new one. There are even older POP3's set up that I no longer want but I can't seem to remove them. When I right click on the accounts I do not get the the 'remove account name' entry on the right click menu. In addition, when I open Account Settings, the 'Remove' entry on the menu bar has no effect.
What can I do now to remove the old unwanted accounts from the navigation pane?