[Dovecot] could not start dovecot - unknown section type

[Daminto Lie]

Hi,

I was wondering if I could get some help with the following error when trying to start dovecot service on Ubuntu Server 10.04.

The error message is as follows

 * Starting IMAP/POP3 mail server dovecot                                       

Error: Error in configuration file /usr/local/etc/dovecot/dovecot.conf line 15: Unknown section type
Fatal: Invalid configuration in /usr/local/etc/dovecot/dovecot.conf [fail]


I have just managed to upgrade it from 1.2.19 to 2.0.17. Then, I tried to start the dovecot by running the command 


$ sudo /etc/init.d/dovecot start

And I received the above message.

Below is the configuration for dovecot.conf


# 2.0.17 (684381041dc4+): /usr/local/etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-37-generic-pae i686 Ubuntu 10.04.3 LTS ext4
auth_debug = yes
auth_debug_passwords = yes
auth_mechanisms = plain login
auth_username_format = %Lu
auth_verbose = yes
base_dir = /var/run/dovecot
disable_plaintext_auth = no
first_valid_uid = 1001
last_valid_uid = 2000
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_location = maildir:/home/vmail/%u/Maildir
mail_privileged_group = mail
passdb {
  driver = pam
}
passdb {
  args = /usr/local/etc/dovecot/dovecot-ldap.conf
  driver = ldap
}
plugin {
  quota = maildir
  quota_rule = *:storage=3GB
  quota_rule2 = Trash:storage=20%%
  quota_rule3 = Spam:storage=10%%
  quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95
  quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80
}
protocols = imap
service auth {
  unix_listener /var/run/dovecot-auth-master {
    group = vmail
    mode = 0660
    user = vmail
  }
  unix_listener /var/spool/postfix/private/auth {
    group = mail
    mode = 0660
    user = postfix
  }
  user = root
}
service imap-login {
  chroot = login
  executable = /usr/lib/dovecot/imap-login
  inet_listener imap {
    address = *
    port = 143
  }
  user = dovecot
}
service imap {
  executable = /usr/lib/dovecot/imap
}
service pop3-login {
  chroot = login
  user = dovecot
}
ssl = no
userdb {
  driver = passwd
}
userdb {
  args = uid=1001 gid=1001 home=/home/vmail/%u allow_all_users=yes
  driver = static
}
verbose_proctitle = yes
protocol imap {
  imap_client_workarounds = delay-newmail
  mail_plugins = quota imap_quota
}
protocol pop3 {
  pop3_uidl_format = %08Xu%08Xv
}
protocol lda {
  auth_socket_path = /var/run/dovecot-auth-master
  mail_plugins = quota
  postmaster_address = postmaster at example.com
  rejection_reason = Your message to <%t> was automatically rejected:%n%r
  sendmail_path = /usr/lib/sendmail
}

Any help would be greatly appreciated.
Thank you