Could anybody please advice me the steps also the pros and cons for below mentioned environment if we are going for the cross forest migration from Exch 2007 SP4 to Exch 2013.
Source Domain - test.local
Active Directory - Windows 2008 R2
Exchange Server - 2007 SP4
Forest - A
Target Domain - test.net
Active Directory - Windows 2012
Exchange Server - 2013
Forest - B
Please let me know is it possible to use the single OWA URL. I am not sure Exchange 2013 internet facing CAS will be able to redirect legacy URL to Exchange 2007 forest.