[Dovecot] doveadm can't import his own mdboxes

[Peer Heinlein]

We're running Dovecot 2.1.17 on Debian:

# 2.1.17 (9efbc0731929): /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-042stab078.27.debug i686 Debian 7.1 simfs

and we're having this namespace configuration:

mail_location = mdbox:/var/mail/%Ld/%Ln/mdbox

namespace inbox {
  disabled = no
  hidden = no
  ignore_on_failure = no
  inbox = yes
  list = yes
  location =
  prefix =
  separator = .
  subscriptions = yes
  type = private
}

As you can see, our namespace seperator is "." and not "/":

a LIST "" "*"
* LIST (\HasChildren) "." INBOX.test
* LIST (\HasNoChildren) "." INBOX.test.huhu
* LIST (\HasNoChildren \Trash) "." Trash
* LIST (\HasChildren) "." INBOX
a OK List completed.

The problem is, that doveadm isn't able to import his own mdbox-directory:

1) delete the whole mdbox folder

# rm -rf mdbox

2) create the new mdbox folder and create some subfolders in it

# doveadm  mailbox create -u max.muster  INBOX.test
# doveadm  mailbox create -u max.muster  INBOX.test.huhu

3) put a mail into a subfolder

4) try to re-import the whole mdbox: it doesn't work

# doveadm  import -u max.muster mdbox:mdbox BACKUP all
doveadm(max.muster): Error: Couldn't create mailbox
BACKUP.INBOX/test/huhu: Character not allowed in mailbox name: '/'

Looks like there's something wrong in the namespace or like doveadm is
working with a hardcoded internal namespace...

Peer


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