For interest, at a previous company were told to cc in legal for sensitive communications and write something in the subject header to say it was confidential a

For interest, at a previous company were told to cc in legal for sensitive communications and write something in the subject header to say it was confidential and for legal review, even though you had no expectation for them to join the conversation. This put the emails into some privileged information category. It wouldn't stop a court getting access if they wanted to read comms but it significantly increased the benchmark to gain access as it was a client lawyer conversation.