outlook и postfix - как правильно их подружить?

Проблема такая:
в логах:
connect from unknown[192.168.0.2]
client unknown[192.168.0.2]
reject: RCPT from unknown[192.168.0.2]: 554 <ext_user@ext_dom.ru>: Relay access denied; from=<int_user@mydomain.ru> to=<ext_user@ext_dom.ru> proto ESMTP helo <int_user_netbios_mach_name>
disconnect from unknown[192.168.0.2]

Настройки postfix:
myhostname = mail.mydomain.ru
disable_dns_lookups = no
mydestination =
mynetworks = 127.0.0.0/8
transport_maps = mysql:/etc/postfix/sql/transport.cf
virtual_mailbox_domains = $myhostname localhost.$mydomain mydomain.ru mydomain2.ru
virtual_transport = virtual
virtual_mailbox_base = /var/mail/virtual
virtual_mailbox_maps = mysql:/etc/postfix/sql/users.cf
virtual_alias_maps = mysql:/etc/postfix/sql/aliases.cf
virtual_uid_maps = mysql:/etc/postfix/sql/uids.cf
virtual_gid_maps = mysql:/etc/postfix/sql/gids.cf
local_recipient_maps =
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_rbl_client list.dsbl.org, reject_rbl_client relays.ordb.org, reject_rbl_client dnsbl.njabl.org, reject_rbl_client bl.spamcop.net
smtp_sasl_security_options = noanonymous
smtp_use_tls = yes
smtp_tls_cert_file = /usr/local/share/pop3d.pem
smtp_tls_CAfile = $smtp_tls_cert_file
smtp_tls_note_starttls_offer = yes
smtpd_tls_auth_only = no
smtpd_use_tls = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
tls_random_source = dev:/dev/unrandom
smtpd_tls_key_file = $smtp_tls_cert_file
smtpd_tls_cert_file = $smtpd_tls_key_file
smtpd_tls_CAfile = $smtpd_tls_cert_file
disable_vrfy_command = yes
show_user_unknown_table_name = no
empty_address_recipient = MAILER-DAEMON@$mydomain
error_notice_recipient = postmaster@$mydomain
2bounce_notice_recipient = postmaster@$mydomain
unknown_local_recipient_reject_code = 550

Пришлось дописать 192.168.0.0/24 к mynetworks чтоб пропускать почту изнутри. Подскажите что делать с Аутглуком? Отказаться от него юзер не может...