My company has acquired a company with a few hundred users. I need to create AD accounts in my environment and mailboxes. The mailboxes will obviously be empty.
I need to import their mail from their old exchange server to their new mailbox and also migrate the email domain. The old and new ads are in separate forests. Some colleagues have suggested simply exporting PST files however this seems a very basic way of doing it with lots of manual processes. What is most simplified way ideally automating as much as possible.