[root@sogo codebluealarms.co.za]# cat /etc/dovecot-ldap.conf
hosts = CB2012r2DC:3268
dn = cn=Administrator,cn=Users,dc=cb,dc=local
dnpass = password
ldap_version = 3
base = dc=cb,dc=local
scope = subtree
auth_bind = yes
user_attrs = sAMAccountName=user
user_filter = (&(ObjectClass=person)(sAMAccountName=%u))
pass_filter = (&(ObjectClass=person)(sAMAccountName=%u))
pass_attrs = sAMAccountName=user

[root@sogo dovecot]# cat dovecot.conf
disable_plaintext_auth = no
info_log_path = /var/log/dovecot_lda.log
log_path = /var/log/dovecot_lda.log
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_gid = 500
mail_location = maildir:/home/vhostmail/domain.com/%u/Maildir
mail_privileged_group = mail
mail_uid = 500
mail_debug = yes
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
#auth_verbose = yes
#auth_debug = yes
#auth_debug_passwords = yes

passdb {
  args = /etc/dovecot-ldap.conf
  driver = ldap
}
protocols = imap pop3 sieve
service auth {
  unix_listener auth-client {
    mode = 0600
  }
  unix_listener auth-master {
    group = vhostmail
    mode = 0600
    user = vhostmail
  }
  user = root
}
service imap-login {
  user = dovecot
}


protocol imap {
  mail_plugins = $mail_plugins imap_acl
}


service pop3-login {
  user = dovecot
#  mail_plugins = acl imap_acl
}
ssl = no
userdb {
  args = /etc/dovecot-ldap.conf
  driver = ldap
}
protocol lda {
  auth_socket_path = /var/run/dovecot/auth-master
  hostname = localhost
  mail_debug = yes
  info_log_path = /var/log/dovecot_lda.log
  log_path = /var/log/dovecot_lda.log
  mail_plugin_dir = /usr/lib/dovecot
  mail_plugins = sieve
  postmaster_address = postmaster@domain.com
  sendmail_path = /usr/lib/sendmail

}

service managesieve-login {
  user = dovecot
  inet_listener sieve {
  port = 4190
}

protocol sieve {
#managesieve_logout_format = bytes=%i/%o
#managesieve_implementation_string = Dovecot Pigeonhole
#managesieve_implementation_string = Cyrus timsieved v2.2.13



}


}
plugin {
  # Used by both the Sieve plugin and the ManageSieve protocol
  sieve = /home/vhostmail/domain.com/%u/.dovecot.sieve
  sieve_dir = /home/vhostmail/domain.com/%u/sieve

}