I did not see any post that hits my exact situation so here goes …
My company has a root/child Domain structure with Exchange in the Child Domain along with all of our users. We are buying another company and hosting servers for them in a seperate Child Domain below common root. I want them to be able to share the Exchange backend cluster in the first Child Domain with Outlook (backend) AND OWA which is currently hosted on FE Servers.
What I believe I Know so far.
I need to edit the recipient policy to allow support for their domain.
I need to run Exchange Domain Prep on new Child Domain
Setup a trust between Child Domains? No clue beyond this.
FE Server – proxied through ISA 2006, need to allow mail delivery for the new domain in ISA but not sure if it will require a seperate front end server since exchange can only host 1 SMPT on FE?
I am about lost with this and would appreciate any help!