dovecot - Feb 2014 - Duplicate namespace prefix: ""

Hello,

i try to run the mail system which explain dovecot in the wiki. 

http://wiki2.dovecot.org/HowTo/VirtualUserFlatFilesPostfix

I have that complete write in the config, only the domain and user
settings i changed. But something is wrong but i not found where
is the mistake.

<dovecot.log>
Feb 03 16:12:52 lmtp(1079, webmaster at silviosiefke.de): Error: user webmaster
at silviosiefke.de: Initialization failed: namespace configuration error:
Duplicate namespace prefix: ""

<mail.log>
Feb  3 16:16:14 ks3374456 postfix/qmgr[1067]: 311A324525D:
from=<double-bounce at ks3374456.kimsufi.com>, size=254, nrcpt=1 (queue
active)
Feb  3 16:16:14 ks3374456 postfix/lmtp[1308]: 311A324525D: to=<info at
silviosiefke.de>, relay=ks3374456.kimsufi.com[private/dovecot-lmtp],
delay=0.09, delays=0.04/0.01/0/0.04, dsn=5.1.1, status=undeliverable (host
ks3374456.kimsufi.com[private/dovecot-lmtp] said: 550 5.1.1 <info at
silviosiefke.de> User doesn't exist: info at silviosiefke.de (in reply to
RCPT TO command))
Feb  3 16:16:14 ks3374456 postfix/qmgr[1067]: 311A324525D: removed


Has someone an idea what can be wrong.

Thank you for help & Nice Day
Silvio

-----BEGIN PGP SIGNED MESSAGE-----
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On Mon, 3 Feb 2014, Silvio Siefke wrote:
> i try to run the mail system which explain dovecot in the wiki.
> http://wiki2.dovecot.org/HowTo/VirtualUserFlatFilesPostfix
The samples in the Wiki are 1) only snippets and 2) do not contain 
Duplicate namespace prefixes, please post your full doveconf -n output.

- -- 
Steffen Kaiser
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Mon, 3 Feb 2014, Silvio Siefke wrote:
> i try to run the mail system which explain dovecot in the wiki.
> http://wiki2.dovecot.org/HowTo/VirtualUserFlatFilesPostfix
The samples in the Wiki are 1) only snippets and 2) do not contain 
Duplicate namespace prefixes, please post your full doveconf -n output.

- -- 
Steffen Kaiser
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Hello,

On Tue, 4 Feb 2014 08:10:35 +0100 (CET) Steffen Kaiser
<skdovecot at smail.inf.fh-brs.de> wrote:
> The samples in the Wiki are 1) only snippets and 2) do not contain 
> Duplicate namespace prefixes, please post your full doveconf -n
> output.
Yes sorry i has forget and secound mail not was delivered in dovecot list.

# dovecot -n
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.10.23-xxxx-std-ipv6-64 x86_64 Gentoo Base System release 2.2 
debug_log_path = /var/log/dovecot-debug.log
info_log_path = /var/log/dovecot-info.log
log_path = /var/log/dovecot.log
mail_debug = yes
mail_location = maildir:~/maildir
mail_plugins = acl
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 ihave
namespace {
  hidden = no
  inbox = yes
  location = 
  prefix = 
  separator = /
  type = private
}
namespace {
  list = yes
  location = maildir:/var/vmail/public:LAYOUT=fs:INDEX=~/public
  prefix = Public/
  separator = /
  subscriptions = no
  type = public
}
namespace inbox {
  location = 
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix = 
}
passdb {
  args = username_format=%u /var/vmail/auth.d/%d/passwd
  driver = passwd-file
}
plugin {
  acl = vfile:/var/vmail/conf.d/%d/acls:cache_secs=300
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_global_dir = /var/vmail/conf.d/%d/sieve
}
protocols = imap lmtp
service auth-worker {
  user = dovecot
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  user = dovecot
}
service imap-login {
  inet_listener imap {
    address = 37.187.103.194
    port = 143
  }
  inet_listener imaps {
    port = 0
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0666
    user = postfix
  }
}
ssl_cert = </etc/ssl/dovecot/server.pem
ssl_key = </etc/ssl/dovecot/server.key
userdb {
  args = username_format=%u /var/vmail/auth.d/%d/passwd
  driver = passwd-file
}
verbose_proctitle = yes
protocol lmtp {
  mail_plugins = acl sieve
  postmaster_address = webmaster at silviosiefke.com
}
protocol lda {
  mail_plugins = sieve
}
protocol imap {
  mail_plugins = acl imap_acl mail_log notify
}


Thank you for help & Nice Day
Silvio