[Dovecot] doveadm mailbox list shows file system directories as mailboxes

[Jürgen Obermann]

Hello.
In our dovecvot we use mbox format with the default filesystem layout.
Therefore it is not possible to have mailboxes which are subfolders of  
other mailboxes containing messages.
The command "doveadm mailbox list" includes the file system  
directories, that contain only subfolders, as normal mailboxes in the  
output:

archiv
archiv/daemon
archiv/dovecot

Did I miss something in the dovecot configuration or is there a bug in  
the command "doveadm mailbox list"?

# 2.0.13: /opt/local/etc/dovecot/dovecot.conf
# OS: SunOS 5.10 sun4v
auth_verbose = yes
disable_plaintext_auth = no
listen = imap.hrz.uni-giessen.de localhost
mail_fsync = always
mail_location = mbox:~/Mail:INBOX=/var/mail/%u
mail_nfs_index = yes
mail_nfs_storage = yes
mail_plugins = mail_log notify
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope  
encoded-character vacation subaddress comparator-i;ascii-numeric  
relational regex imap4flags copy include variables body enotify  
environment mailbox date
mmap_disable = yes
namespace {
   inbox = yes
   location =
   prefix =
   separator = /
   type = private
}
namespace {
   hidden = yes
   list = no
   location =
   prefix = Mail/
   separator = /
   subscriptions = yes
   type = private
}

Thanks, Jürgen
-- 
Hochschulrechenzentrum der | Mail: Juergen.Obermann at hrz.uni-giessen.de
Justus-Liebig-Universitaet | WWW:  http://www.uni-giessen.de/obermann/
Heinrich-Buff-Ring 44      | Tel:  0641-99-13054 (0641-99-13001)
D-35392 Giessen, Germany   | Fax:  0641-99-13009