I need you help in some questions.
I have 2 domains in 2 cross forest and have one stucture of Exchange 2K3, and Exchange 2K7 in another.
In Exchange 2K7 I have migrating every account and groups. The groups still are in Global Distribution (Mail Non-Universal Group).
Before I begin migration of another domain, I want to know if i should change the type of Distribution Groups to Universal, because i have users and local groups from AD of Exchange 2K7 that need to add in Distribution Groups of domain of Exchange 2K3.
I want too know de positives and negatives things about Mail Non-Universal Group and Mail Universal Group.
Thanks a lot.