В сети стоит прозрачный прокси squid. Все работало нормально. Но вот уже пару дней не знаю что получилось перестал работать Outlook. Настройки squid я не трогал, менял только правила NAT. Щас правила такие
# Generated by iptables-save v1.4.12 on Fri May 30 10:27:48 2014
*mangle
:PREROUTING ACCEPT [17319:6426873]
:INPUT ACCEPT [8693:3202829]
:FORWARD ACCEPT [8465:3215286]
:OUTPUT ACCEPT [8788:3731880]
:POSTROUTING ACCEPT [16839:6932665]
-A FORWARD -o eth0 -p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1400:65495 -j TCPMSS --clamp-mss-to-pmtu
COMMIT
# Completed on Fri May 30 10:27:48 2014
# Generated by iptables-save v1.4.12 on Fri May 30 10:27:48 2014
*nat
:PREROUTING ACCEPT [1314:84181]
:INPUT ACCEPT [818:50860]
:OUTPUT ACCEPT [678:41476]
:POSTROUTING ACCEPT [678:41476]
-A PREROUTING ! -d 192.168.2.0/24 -i eth1 -p tcp -m multiport --dports 80,8080 -j DNAT --to-destination 192.168.2.200:3128
-A POSTROUTING -s 192.168.2.0/24 -o eth0 -j MASQUERADE
COMMIT
# Completed on Fri May 30 10:27:48 2014
# Generated by iptables-save v1.4.12 on Fri May 30 10:27:48 2014
*filter
:INPUT ACCEPT [8494:3188083]
:FORWARD DROP [538:32440]
:OUTPUT ACCEPT [8785:3731728]
-A INPUT -i lo -j ACCEPT
-A INPUT -i eth1 -p tcp -m tcp --dport 22 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 443 -j ACCEPT
-A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i eth0 -o eth0 -j REJECT --reject-with icmp-port-unreachable
-A FORWARD -p tcp -m tcp --dport 53 -j ACCEPT
-A FORWARD -p udp -m udp --dport 53 -j ACCEPT
-A FORWARD -p tcp -m tcp --dport 443 -j ACCEPT
COMMIT
# Completed on Fri May 30 10:27:48 2014
Кусок из squid.conf
acl SSL_ports port 443
acl SSL_ports port 563
acl SSL_ports port 873
acl Safe_ports port 80
acl Safe_ports port 21
acl Safe_ports port 443
acl Safe_ports port 70
acl Safe_ports port 210
acl Safe_ports port 1025-65535
acl Safe_ports port 280
acl Safe_ports port 488
acl Safe_ports port 591
acl Safe_ports port 777
acl Safe_ports port 631
acl Safe_ports port 873
acl Safe_pots port 901
acl Safe_ports port 403
acl purge method PURGE
acl CONNECT method CONNECT
Помогите пожалуста.