Display threads together in mailboxes

share/mutt-wizard.muttrc

@@ -7,7 +7,8 @@ set mailcap_path = $HOME/.config/mutt/mailcap:/usr/local/share/mutt-wizard/mailc
 set mime_type_query_command = "file --mime-type -b %s"
 set date_format="%y/%m/%d %I:%M%p"
 set index_format="%2C %Z %?X?A& ? %D %-15.15F %s (%-4.4c)"
-set sort = 'reverse-date'
+set sort = 'threads'
+set sort_aux = 'reverse-last-date-received'
 set smtp_authenticators = 'gssapi:login'
 set query_command = "abook --mutt-query '%s'"
 set rfc2047_parameters = yes