A user is leaving the company but will be returning to the company in a new role, and will be requiring a new mailbox and smtp address in their new role. But they'll be using the same AD account associated to their new mailbox.
is there anyway I can attach the person's old mailbox from their former role to a different, existing user, who just wants to have it attached as a separate mailbox in their Outlook?
Is the only way to do this to mailbox export as PST and attach to the person who needs access to the mailbox, then remove the malbox from Exchange and re-create for the returning user's existing AD account?
Or should I create a new "shared" mailbox, then export/import the employee's former mailbox and import it into the new shared mailbox?
Or, create a new disabled user like "former_employee", and disconnect the mailbox and reconnect it to the new AD user, then create a new mailbox for the employee's existing AD account