We are about to install the 2nd exchange 2007 on our domain with CAS, MB & HT roles. My main area of concern lies
1. What considerations must i take when it comes to certificates for the new CAS
2. Mail routing between the old exchange & new exchange server
3. configuring the cas on IIS with OWA, Outlook Anywhere, Active Sync, Autodiscover etc such that once all is working, i want to bring down the CAS on the 1st exchange 2007 and solely use the 2nd exchange.