On Fri, 2010-10-22 at 15:42 +0200, Johan Hendriks wrote:

I have one more question. Is it possible if you share the inbox, that all subfolders will be visable to. I can not see the subfolders of the shared inbox.

This is not very useful if the user which shares his inbox, has sieve rules active that stores e-mail directly into subfolders.

You have to explicitly specify all the mailboxes you want to share. There is no ACL inheritance.