-folder-hook "!$" set sort=mailbox-order;push "*"
-folder-hook "=(=|sent|spam|err|input)" set sort=mailbox-order;push "*"
+folder-hook "" set sort=threads
+folder-hook "!$" set sort=mailbox-order;push "*<Tab>"
+folder-hook "=(=|err|rhbug)" set sort=mailbox-order;push "*<Tab>"
+folder-hook "=(sent|spam|input)" set sort=mailbox-order;push "*"