postfix + spam

[Kif]

Witam !

Mam poważny problem i niestety niewielką wiedzę na temat postfix`a. To moja
konfiguracja:

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
mail_owner = postfix
default_privs = nobody
myhostname = ...
myorigin = $myhostname
virtual_maps = hash:/etc/mail/virtual,
hash ....
.
.
mynetworks =  127.0.0.0/8
alias_maps = hash:/etc/mail/aliases
alias_database = hash:/etc/mail/aliases
mail_spool_directory = /var/mail
mailbox_command = /usr/bin/procmail
debug_peer_level = 2
debugger_command =
PATH=/usr/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
biff = no
setgid_group = maildrop
smtpd_tls_cert_file = /etc/mail/server.pem
smtpd_tls_key_file = /etc/mail/key.pem
smtpd_tls_CAfile = /etc/mail/CAcert.pem
smtpd_tls_loglevel = 3
smtpd_tls_received_header = yes
smtpd_use_tls = yes
smtpd_tls_session_cache_timeout = 3600s
tls_daemon_random_source = dev:/dev/urandom
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions =
 permit_sasl_authenticated,
 permit_mynetworks,
 check_client_access hash:/var/lib/popbsmtp/pop-before-smtp,
 check_relay_domains

ja tego serwera nie stawiałem  i dlatego mam z nim problem. A problem polega
na tym, że pomimo autoryzacji w logach mam coś takiego (spam):

Feb 25 11:15:30 ... postfix/nqmgr[10009]: 7A42B3BA8C:
from=<LittleBitches w yours.com>, size=2151, nrcpt=15 (queue active)
Feb 25 11:15:30 ... postfix/nqmgr[10009]: AA2E13BA86:
from=<LittleBitches w yours.com>, size=2155, nrcpt=15 (queue active)
...
Feb 25 11:15:30 ... postfix/smtp[10693]: 556F23BA91:
to=<edmund w poohmail.com>, relay=none, delay=1363, status=deferred (connect
to mail.poohmail.com[204.1.28.140]: Connection refused)
Feb 25 11:15:30 ... postfix/smtp[10695]: connect to
ayna7.ayna.com[216.177.8.122]: Connection refused (port 25)
Feb 25 11:15:30 ... postfix/smtp[10695]: 5F1E73BA79: to=<elayna w ayna.com>,
relay=none, delay=1648, status=deferred (connect to
ayna7.ayna.com[216.177.8.122]: Connection refused)
Feb 25 11:15:31 ... postfix/smtp[10699]: 54AC23BA84:
to=<drumcfadden w yahoo.com>, relay=mx1.mail.yahoo.com[64.157.4.84],
delay=1760, status=deferred (host mx1.mail.yahoo.com[64.157.4.84] said: 421
VS2-MF Excessive unknown recipients - possible Open Relay
http://help.yahoo.com/help/us/mail/spam/spam-18.html (#4.4.5))

Proszę o pomoc. Jak to szybko załatać.

Pozdrawiam,

KiF