[Dovecot] LSUB output format != LIST output format

31 Jan 2010

      Hi,
I have a problem with my hanging claws-mail. I first subscribed to
their bug tracker, described the problem and before I pressed on submit
in their bugtracker, I realized it might be a problem with dovecot.
I'm using dovecot for internal purposes only (catching all my external
boxes and storing locally):
1.2.8: /usr/local/etc/dovecot.conf
OS: FreeBSD 7.2-RELEASE-p5 i386
listen: *, [::]
ssl: required
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
verbose_proctitle: yes
first_valid_uid: 1000
first_valid_gid: 1000
mail_privileged_group: mail
mail_location: maildir:~/.mails
imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep
lda:
postmaster_address: postmaster@example.com
sendmail_path: /usr/sbin/sendmail
auth default:
mechanisms: plain login
username_format: %Lu
passdb:
driver: pam
args: session=yes dovecot
userdb:
driver: passwd
args: blocking=yes
socket:
type: listen
client:
path: /var/run/dovecot/auth-client
mode: 432
master:
path: /var/run/dovecot/auth-master
mode: 384
The mailboxes are on simple UFS2 file system.
Here is what I get when listing subscribed folders, like claws-mail
does:
. LSUB "" "*"

LSUB () "." "Trash"
LSUB () "." "Queue"
LSUB () "." "Sent"
LSUB () "." "Drafts"
LSUB () "." "INBOX"
LSUB () "." "INBOX.FreeBSD."
LSUB () "." "INBOX.Spam"
LSUB () "." "INBOX.Spam.LearnHam"
LSUB () "." "INBOX.Spam.LearnSpam"
LSUB () "." "INBOX.Steno"
LSUB () "." "INBOX.Gentoo"
LSUB () "." "INBOX.Notifications"
. OK Lsub completed.

Please notice the "INBOX.FreeBSD." with the dot at the end of the
folder name. Here the output of LIST:
. LIST "" "*"

LIST (\HasNoChildren) "." "Trash"
LIST (\HasNoChildren) "." "Queue"
LIST (\HasNoChildren) "." "Sent"
LIST (\HasNoChildren) "." "Drafts"
LIST (\HasChildren) "." "INBOX"
LIST (\HasChildren) "." "INBOX.FreeBSD"
LIST (\HasNoChildren) "." "INBOX.FreeBSD.current"
LIST (\HasNoChildren) "." "INBOX.FreeBSD.Foren"
LIST (\HasNoChildren) "." "INBOX.FreeBSD.announce"
LIST (\HasNoChildren) "." "INBOX.FreeBSD.stable"
LIST (\HasChildren) "." "INBOX.Spam"
LIST (\HasNoChildren) "." "INBOX.Spam.LearnHam"
LIST (\HasNoChildren) "." "INBOX.Spam.LearnSpam"
LIST (\HasNoChildren) "." "INBOX.Gentoo"
LIST (\HasNoChildren) "." "INBOX.Steno"
LIST (\HasNoChildren) "." "INBOX.Notifications"
. OK List completed.

The folder name here does not have the dot at the end? Why is this
happening? The RFC says the output should not differ, as far as I
understood it.
I think it might be the dot in LSUB causing claws-mail loop
indefinitely when refreshing the folder structure. Annoying!!
I hope, you can help me. Thanks in advance.
--
Martin Sugioarto