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The VPN connects, but the outlook does not want to connect, RPC over HTTPS is a option.<br />
Owa is working but they want to move mail to their personal folders.<br />

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I am having a problem with our notebooks trying to connect to Exchange <br />
when using a (Vodacom) 3G mobile connection and VPN. <br />
&nbsp;<br />
If we connect through ADSL + VPN we experience no problem, but via a 3G <br />
modem, it won't work, If I look in MS Exchange Connection status,<br />
it just shows connecting and after a while &nbsp;Outlook shows &quot;Disconnected&quot;.<br />
<br />
- Running Windows XP +SP2, Outlook 2007<br />
- Trend Micro Client Server Antivirus<br />
- Notebook/user is logging on as domain user<br />
- Using Vodafone 3G card for connection<br />
- Firewall on pc is off<br />

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I am having a problem with our notebooks trying to connect to Exchange 
when using a (Vodacom) 3G mobile connection and VPN. 
 
If we connect through ADSL + VPN we experience no problem, but via a 3G 
modem, it won't work, If I look in MS Exchange Connection status,
it just shows connecting and after a while  Outlook shows "Disconnected".

- Running Windows XP +SP2, Outlook 2007
- Trend Micro Client Server Antivirus
- Notebook/user is logging on as domain user
- Using Vodafone 3G card for connection
- Firewall on pc is off


3G mobile connection, Outlook over VPN.

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

Microsoft Forefront ISA Server

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.