postfix sender non-delivery notification

[Petr Bartel]

Dobry den,
mam smtp gw ktera pouze dela content filter a pote posila do vnitrni
site na jiny mailserver a mam problem s bounce messages

nasledujici konfigurace :
alias_maps = hash:/etc/postfix/aliases
allow_untrusted_routing = no
bounce_size_limit = 50000
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
default_destination_concurrency_limit = 10
default_destination_recipient_limit = 25
default_privs = nobody
delay_warning_time = 4
disable_vrfy_command = yes
double_bounce_sender = double-bounce
header_size_limit = 102400
inet_interfaces = all
line_length_limit = 2048
local_destination_concurrency_limit = 2
local_recipient_maps = 
local_transport = error:local mail delivery is disabled
mail_owner = postfix
mailbox_size_limit = 0
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
maximal_queue_lifetime = 5
message_size_limit = 10485765
mydestination = 
mydomain = risk.cz
myhostname = mail.risk.cz
mynetworks = 81.30.235.136/32, 192.168.0.0/24, 127.0.0.0/8
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
queue_minfree = 0
queue_run_delay = 1000s
relay_domains = $mydomain
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP $mail_name
transport_maps = hash:/etc/postfix/transport

kdyz poslu mail s pro neexistujiciho uzivatele, projde dovnitr

 Jan 28 10:05:48 risk-linux postfix/smtp[9355]: 02D1B2798C:
 to=<test na risk.cz>, relay=192.168.0.252[192.168.0.252]:25, delay=5.5,
 delays=0.23/0
 .14/0.03/5.1, dsn=5.1.1, status=bounced (host
 192.168.0.252[192.168.0.252] said: 550 5.1.1 User unknown (in reply to
 RCPT TO command))
 Jan 28 10:05:53 risk-linux postfix/cleanup[9354]: 63E8627A79:
 message-id=<20080128090553.63E8627A79 na mail.risk.cz>
 Jan 28 10:05:53 risk-linux postfix/qmgr[9340]: 63E8627A79: from=<>,
 size=2705, nrcpt=1 (queue active)
 Jan 28 10:05:53 risk-linux postfix/bounce[9356]: 02D1B2798C: sender
 non-delivery notification: 63E8627A79


muzu nejak zakazat odesilani tech notifikaci o neexistujicim uzivatel,
nebo to resit jinak?

Dekuju
    Petr 
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