Isa Server 2006 Firewall

[yibie]

i already configured the firewall properly

And it works fine with any other websites .but when i try our mail which is given from my country internet service provider(ISP)(url is attached here) ,the login form displayed and when I type the username & password ,it display the following texts “Loading…. If u ar using a slow connection or an order computer, u may want to switch to standard (HTML) Version”

When I click on this text message

it display the following error message After a long period of time

“The specified web server could not be contacted, and the requests timed out .please type the web address correctly or try it later”

But when I try to open the above my mail which is given by ISP(the url is attached here) page in the Isa server 2006 computer after disabling firewall it works fine

The Isa server NIC configuration is as follows

 

Nic 1

ip 192.168.1.2

mask 255.255.255.0

 

Nic 2

ip 192.168.1.3

mask 255.255.255.0

Gw 192.168.1.1

 

Dns 213.55.96.148

213.55.96.149

Pls help I need to fix the problem

my ISP.txt