There are some known connectivity type issues under the Outlook 2007 beta.
When you VPN in, are you trying to establish an Exchange connection over
HTTPS?

"Ozan***" wrote in message
...
Yes Neo;

My mobile computer can reach the dns server and exchange server via
browser.
Outlook web access is ok but only Outlook 2007 Beta couldn't reach the
server. I was using Outlook 2003 before 2007 and no problems.

"neo [mvp outlook]" wrote:

When connected via VPN, can your workstation resolve the name of the
Exchange server and global catalog (domain controller) servers?

"Ozan***" wrote in message
...
I can receive mails while in office, but couldn't receive my mails while
outside. Cached exchange mode is enabled. Using checkpoint securemote.
Error
: couldn't find exchange server or not connect to exchange server.