Kopano-IMAP access to public folders


I need access to the Kopano via Thunderbird. I have enabled IMAP access for the corresponding account in UCS (4.4.9). This also works. I see all folders of the user.

However, I cannot access the public folders that this user has mounted. I only see “Public folders” without the subfolders contained therein.

Where can I enable access to the Public Folders via IMAP?

with best