I have a customer that is a part of a charity organisation. The organisation has installed an ADSL line with a firewall which we cannot touch. They have a Windows 2003 server running Exchange 2007. They use a smart host to send mail through the existing ADSL line and email is delivered through the provider via SMTP to the Exchange server. I cannot change any of these existing settings.
The customer needs to use Outlook Web Access (OWA) but the organisation will not open HTTPS on the router/firewall.
The customer had installed a 2nd ADSL line and wants to use this solely for OWA. I have installed another firewall but I cannot get OWA to function unless it is using the new firewall as its gateway.
Is there any way of using OWA by coming in on the new ADSL line which is not the Exchange servers Gateway?