[Dovecot] Sub-Sub-Subfolders not shown after converting from maildir to mdbox

[Patrick Westenberg]

Timo Sirainen schrieb:

> Or just from mdbox:~/mdbox to mdbox:~/mdbox:LAYOUT=maildir++

This doesn´t work:

Initialization failed: Namespace 'INBOX.': Mailbox list driver 
maildir++: maildir_name not supported by this driver

or without namespace:

Initialization failed: Initializing mail storage from mail_location 
setting failed: Mailbox list driver maildir++: maildir_name not 
supported by this driver