dovecot - Feb 2008 - LDA postfix + deliver, problem lookup, accepting email for everyone

Hi,

I'm setting up dovecot pop3 deamon for a small set of mailbox.

I want to be able to set a small set of mailbox simply, so I've used 
"passdb passwd-file" + virtual mailboxes with "userdb
static".
My problem is that it seems that postfix accept and create mailbox for 
every address I post. It is configured to use local delivery through 
dovecot's deliver.

How do I force deliver to retrun an error if the destination is not 
defined in the passwd-file?
The doc said that "userdb static" should do a lookup automatically.
But
no luke for me.
Is it really a deliver problem, or a postfix configuration problem?

Any, hint?

Regards,
Sylvain.


dovecot --version
1.0.rc15

# dovecot -n
# /etc/dovecot/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot/dovecot.log
info_log_path: /var/log/dovecot/dovecot-info.log
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: pop3
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/pop3-login
first_valid_uid: 8
last_valid_uid: 8
first_valid_gid: 8
last_valid_gid: 8
mail_extra_groups: mail
mail_location: maildir:/var/mail/%u
mail_executable: /usr/lib/dovecot/pop3
mail_plugin_dir: /usr/lib/dovecot/modules/pop3
pop3_uidl_format: %08Xu%08Xv
auth default:
  verbose: yes
  debug: yes
  passdb:
    driver: passwd-file
    args: /etc/dovecot/passwd.dovecot
  userdb:
    driver: static
    args: uid=mail gid=mail home=/var/mail/%u allow_all_users=no
  socket:
    type: listen
    client:
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      user: mail
      group: mail


Also in postfix :

dovecot_destination_recipient_limit = 1
virtual_mailbox_domains = my.domain.com
virtual_transport = dovecot
# UID/GID mail
virtual_uid_maps  = static:8
virtual_gid_maps  = static:8

+ master.cf
# pop3 deliver dovecot
dovecot   unix  -       n       n       -       -       pipe
  flags=DRhu user=mail:mail argv=/usr/lib/dovecot/deliver -f ${sender} 
-d ${recipient}

Hi Charles
Charles Marcus a ?crit :
>> dovecot --version
>> 1.0.rc15 
>
> Please upgrade first - this is very old.
Yep, you're right, but it's debian etch package version.

Is it known to be broken, using this version?

I've fought with other software compilation, if I can avoid to do it one 
more time...

Thanks noticing that.

Regards,
Sylvain.

On Wed, 2008-02-06 at 11:58 +0100, Sylvain Viart wrote:
> Hi,
> 
> I'm setting up dovecot pop3 deamon for a small set of mailbox.
> 
> I want to be able to set a small set of mailbox simply, so I've used 
> "passdb passwd-file" + virtual mailboxes with "userdb
static".
> My problem is that it seems that postfix accept and create mailbox for 
> every address I post. It is configured to use local delivery through 
> dovecot's deliver.
> 
> How do I force deliver to retrun an error if the destination is not 
> defined in the passwd-file?
> The doc said that "userdb static" should do a lookup
automatically. But
> no luke for me.
> Is it really a deliver problem, or a postfix configuration problem?
You might be able to work around this by configuring Postfix, but this
is anyway fixed in a newer Dovecot version. You can get newer debs from
backports.org.

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Timo Sirainen a ?crit :
> On Wed, 2008-02-06 at 11:58 +0100, Sylvain Viart wrote:
>   
>> I'm setting up dovecot pop3 deamon for a small set of mailbox.
>>
>> I want to be able to set a small set of mailbox simply, so I've
used
>> "passdb passwd-file" + virtual mailboxes with "userdb
static".
>> My problem is that it seems that postfix accept and create mailbox for 
>> every address I post. It is configured to use local delivery through 
>> dovecot's deliver.
>>
>> How do I force deliver to retrun an error if the destination is not 
>> defined in the passwd-file?
>> The doc said that "userdb static" should do a lookup
automatically. But
>> no luke for me.
>> Is it really a deliver problem, or a postfix configuration problem?
>>     
>
> You might be able to work around this by configuring Postfix, but this
> is anyway fixed in a newer Dovecot version. You can get newer debs from
> backports.org.
>   
Ok done. form backports.org.

dovecot --version
1.0.10

Still the same behavior.
What should I look at more in detail now?

Does it depend of the dovecot.conf or passwd-file content?

I've followed documentation at 
http://wiki.dovecot.org/HowTo/SimpleVirtualInstall + LDA 
http://wiki.dovecot.org/LDA/Postfix

Regards,
Sylvain.

Hi,
>>> I'm setting up dovecot pop3 deamon for a small set of mailbox.
>>>
>>> I want to be able to set a small set of mailbox simply, so I've
used
>>> "passdb passwd-file" + virtual mailboxes with
"userdb static".
>>> My problem is that it seems that postfix accept and create mailbox
for
>>> every address I post. It is configured to use local delivery
through
>>> dovecot's deliver.  .
>>>       
> dovecot --version
> 1.0.10
>
> I've followed documentation at 
> http://wiki.dovecot.org/HowTo/SimpleVirtualInstall + LDA 
> http://wiki.dovecot.org/LDA/Postfix
I've restarted all from scratch follow the link above, it works!
I don't know exactly where is was buggy...

I've:

dovecot.conf
# Remove pop3 things if you don't want them
protocols = pop3

# It's nice to have separate log files for Dovecot. You could do this
# by changing syslog configuration also, but this is easier.
log_path = /var/log/dovecot/dovecot.log
info_log_path = /var/log/dovecot/dovecot-info.log

# Disable SSL for now.
ssl_disable = yes
disable_plaintext_auth = no

# We're using Maildir format
mail_location = maildir:~/Maildir

# If you're using POP3, you'll need this:
pop3_uidl_format = %08Xu%08Xv

# Optimizations:
dotlock_use_excl=yes
maildir_copy_with_hardlinks=yes

# Authentication configuration:
auth_verbose = yes

auth default {
  mechanisms = plain
  passdb passwd-file {
    args = /etc/dovecot/passwd
  }
  userdb static {
    args = uid=vmail gid=vmail home=/var/vmail/%u
  }
  socket listen {
    # Note that we're setting a master socket. SMTP AUTH for Postfix and 
Exim uses client sockets.
    master {
      path = /var/run/dovecot/auth-master
      # Auth master socket can be used to look up userdb information for
      # given usernames. This probably isn't very sensitive information
      # for most systems, but still try to restrict the socket access if 
possible.
      mode = 0600
      user = vmail # User running deliver
      #group = mail # Or alternatively mode 0660 + deliver user in this 
group
    }
  }
}
# needed or deliver will fail with :
#Feb  6 16:06:31 postfix/pipe[21394]: 50D7B130069: 
to=<jane at elsewhere.org>, relay=dovecot, delay=0.13, 
delays=0.08/0/0/0.04, dsn=5.3.5, status=bounced (local configuration error)

protocol lda {
  postmaster_address = postmaster at example.com
}

part of the /etc/postfix/main.cf

dovecot_destination_recipient_limit = 1
virtual_mailbox_domains = example.com, elsewhere.org
virtual_transport = dovecot
# uid=1003(vmail) gid=1003(vmail) groups=1003(vmail)
virtual_uid_maps  = static:1003
virtual_gid_maps  = static:1003

log file :
/var/log/dovecot# ls -l
total 8
-rw-rw---- 1 vmail vmail 317 2008-02-06 16:12 dovecot-info.log
-rw-rw---- 1 vmail vmail   1 2008-02-06 16:11 dovecot.log

/var/vmail# ls -l
total 8
drwx------ 3 vmail vmail 4096 2008-02-06 16:12 dave at example.com
drwx------ 3 vmail vmail 4096 2008-02-06 16:10 jane at elsewhere.org

/etc/dovecot# cat passwd
timo at example.com:{PLAIN}hello123
dave at example.com:{PLAIN}world234
joe at elsewhere.org:{PLAIN}whee
jane at elsewhere.org:{PLAIN}mypass


a bounce :

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<dave2 at example.com>: user unknown



Also in the log:
/etc/dovecot# less /var/log/dovecot/dovecot-info.log

dovecot: Feb 06 16:11:30 Info: auth(default): 
passwd-file(smutrz at example.com): unknown user
deliver(dave at example.com): Feb 06 16:12:05 Info: 
msgid=<20080206151205.8FC1D130069>: saved mail to INB
OX
dovecot: Feb 06 16:12:09 Info: auth(default): 
passwd-file(dave2 at example.com): unknown user