Archive emails to a locked archive for a Shared Mailbox.

Thanks for taking the time to consider this - and for the reply. I guess there are certainly ways to make it "appear" like you don't have access to the archive . . . but I want to lock it. Effectively I don't want new users of the shared mailbox to be able to hunt through 10 years worth of information on business and clients. But new users need access to the newer emails in the shared mailbox to so their jobs. I need access to all the data to do mine.

Perhaps the only way is export older emails periodically and delete them from the shared mailbox . . . but I don't like the sound of the admin and mess of doing that . . . .