The protections for phone calls arose back when phone lines were dumb analog wires between telephones. E-mail has never been like that, and it's always involved storing communications on a third party's systems.
>E-mail has never been like that, and it's always involved storing communications on a third party's systems.
Why should storing something on a third party's system obviate the need for a warrant? If I rent real property and use it to store my papers, does that mean the government should be entitled to seize them without a warrant because I'm storing them on the premises of a third party? If not, what's the difference?