We have a simple implementation of the following;
1 x Exchange 2007 MBX (server03.companyname.com.au)
1 x Exchange 2007 HT/CAS (server05.companyname.com.au)
1 x Reverse Proxy (webmail.company.com.au)
1 x Exchange 2007 MBX, HT, CAS (server04.companyname.com.au)
At the moment, all users connect to the Reverse Proxy server in Site A, as this is the only site with an Internet link. We have a single domain, and external users use the webmail server for OWA and Outlook Anywhere.
The problem we have is that we cannot use ActiveSync or "Computer File Access" (through links sent in emails through OWA) for anyone that is in Site B.
How can we enable ActiveSync and File Access for site B? Will ISA/TMG enable us to do this? Do we need to put a second reverse proxy (with a new hostname and SSL certificate) in for access to Site B?