Error "Authorization failed because Outlook does not support any of the available authorization methods" Code: -17897

Since a May upgrade, I am unable to receive any mail at my @mac.com accoun†.   Outlook set up seems to correctly point to this account but shows a yellow light in the selection panel.  It is the only account that is available in this panel.  The message in title above shows down in lower righ† corner when click on yellow alert sign.  beside the words Not connected to account.  Continue to receive this error code.