LinuxQuestions.org - Dovecot with Thunderbird / Squirrelmail folder structure problem

Hi all!

I am in the process of configuring my server for handling my mail accounts.
Now I have a problem with the folder structure not working as it should in Thunderird or Squirrelmail.
I want to have . as a separator and all the folders stored under INBOX.

I tried inserting this in the /etc/dovecot/dovecot.conf:

Code:

namespace private {

    separator = .

    prefix = INBOX.

    inbox = yes

}

This made the Sent, Drafts and Trash folder show up under the Inbox but I can't create any more subfolders.
On the server I created Inbox.Saved.test and the folder shows up correctly in Thunderbird but when I select it I get an error saying I can't access Saved/test.

Maybe someone here has had a similar problem and have a great solution for me :)