That, too, only works if and only IF a Junk folder exists, what is - without the modifications of my howto - not the case if you create a new user out of the box. That user needs to login first with Roundcube or an IMAP Client to create those folders, if you don't do that for him. If that folder doesn't exist, that will result in further problems.
With that solution in this thread you don't have to edit that much files, but it's still important, that the folders (.Junk, .Trash) exist.
Last edited by Grey; 26th September 2008 at 10:56.