[Dovecot] Dovecot Update on Ubuntu from 1.0.10 to 1.2 doesn't work

[franc walter]

Am Mon, 24 Jan 2011 09:30:53 +0100 you wrote:

> hm i wonder why do iam running quota with 1.x...

> protocol imap {
>   mail_plugins = quota imap_quota
> }
> protocol pop3 {
>   mail_plugins = quota
>   pop3_enable_last = yes
>   pop3_uidl_format = %08Xu%08Xv
> }
> plugin {
> quota = maildir:ignore=Trash
> }


I will try this later. But now i have a much bigger problem: dovecot still
doesn't get mails although i downgraded it. In the log i can read:

dovecot: 2011-01-24 11:09:28 Info: auth(default): client in: AUTH	1	PLAIN
service=IMAP	secured	lip=127.0.0.1	rip=127.0.0.1
resp=AGZyYW5jQGV3Ni5vcmcAMzE0MTU=
dovecot: 2011-01-24 11:09:28 Info: auth-worker(default):
sql(francwalter at example.org,127.0.0.1): query: SELECT email as user,
password FROM view_users WHERE email='francwalter at example.org';
dovecot: 2011-01-24 11:09:28 Info: auth(default): client out: OK	1
user=francwalter at example.org
dovecot: 2011-01-24 11:09:28 Info: auth(default): master in: REQUEST	88
12136	1
dovecot: 2011-01-24 11:09:28 Info: auth(default):
passwd(francwalter at example.org,127.0.0.1): lookup
dovecot: 2011-01-24 11:09:28 Info: auth(default):
passwd(francwalter at example.org,127.0.0.1): unknown user
dovecot: 2011-01-24 11:09:28 Info: auth(default): master out: USER	88
francwalter at example.org	uid=5000	gid=5000
home=/home/vmail/example.org/francwalter
dovecot: 2011-01-24 11:09:28 Info: imap-login: Login:
user=<francwalter at example.org>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1,
secured
dovecot: 2011-01-24 11:09:28 Info: IMAP(francwalter at example.org): Effective
uid=5000, gid=5000, home=/home/vmail/example.org/francwalter
dovecot: 2011-01-24 11:09:28 Info: IMAP(francwalter at example.org): Namespace:
type=private, prefix=INBOX., sep=., inbox=yes, hidden=no, subscriptions=no
dovecot: 2011-01-24 11:09:28 Info: IMAP(francwalter at example.org): maildir:
data=/home/vmail/example.org/francwalter
dovecot: 2011-01-24 11:09:28 Info: IMAP(francwalter at example.org): maildir:
root=/home/vmail/example.org/francwalter,
index=/home/vmail/example.org/francwalter, control=, inbox=
dovecot: 2011-01-24 11:09:28 Info: auth(default): new auth connection:
pid=13385
dovecot: 2011-01-24 11:09:28 Info: IMAP(francwalter at example.org):
Disconnected: Logged out


So i got logged out immediately. There is no visible reason for me why.
Dovecot-common, dovecot-imap and dovecot-pop are back on 1.0.10 again

Amazingly this night when i downgraded, everything seemed ok, i got mails
again. But not anymore.
What is it?
Is there a way to force dovecot to create informative logs?

I put already all this:

mail_debug=yes
auth_debug=yes
auth_debug_passwords=yes
verbose_ssl=yes
auth_verbose=yes

maybe i just don't know where to look?