Here is our setup. We have 2 Forests. We have the cross forest communication setup. We have exchange on both forest. Forest A ,Child A , and Exchange A. Forest B, Child B, and Exchange B. The users are going to be migrated from A to B. The team in charge of the migration decided with upper management to not migrate the users mailbox but only the AD account portion. I think this will cause issues with the users mailbox.
Is it possible to provide information if doing this type of migration will cause issues for the users email or if this is a valid migration process.