1+ -- there simply isn't a rationale for auto-appending these disclaimers to emails.

As someone else has pointed out, you'd think the mere fact that someone auto-appends these things to every email diminishes the likelihood that a court would take them seriously.

Consider also the absurdity of the sender using an inherently insecure communications channel to communicate information with a demand that the receiver keep it confidential...

> Consider also the absurdity... ..inherently insecure communications channel... This is not only absurd but also irresponsible, irresponsible in a sense that could be made valid in court.