you can use outlook exchange mode at your own computer outside ethos office without using VPN.
this article is based on outlook2007. it is similar in outlook 2003.
use your browser, here use ie6.access to mail.xxx.com.cn. you will meet a security alert. click view certificate.
in the title choose certification path, click root certificate beijing then view certificate
if you can not get the certificater from outside, please ask your IT administrator send you one.
choose Trusted root certification authorities
input server05 in microsoft exchange server blank
click more settings, it will take some time about 1~2mins. then there will be a error, ignro it.
after OK. you will see the exchange settings, click connection
here the connection
you will receive a alert again.
ignro it. press OK
then click next.
close outlook and reopen it. you will receive a form.
then after a moment, you will see outlook connect with exchange server.