Link to AD thread here:
My company has merged with another. For political reasons both brands must remain separate with no front facing knowledge of the other brand. So OWA for example would need 2 links, one for each brand. I am trying to think of any other areas the domains would appear to the user. This is what I came up with.
Existing:
Company A Domain
Exchange 2003
Company B Domain
Exchange 2010
Proposed:
Create a new root neutral forest/domain.
Migrate both domains to 2 new child domains under this new root/forest
Bring the domain to 2012 R2
Create a single Exchange 2013 cluster
Migrate both company mailboxes to new cluster retaining original email addr but have a new neutral recipient policy
What is the best way to accomplish this?
Where exactly does Exchange sit (resource domain)?
How can I have logical separation for each brand to have their own OWA but talking to the single cluster?
Thanks!