yehudayona Abba_S, are you claiming that emails are not protected by Rabbeinu Gershom’s ruling? Rav Scheinberg ZTL disagreed with you.
As I said these emails were on government servers which means there is public knowledge, Rabbeinu Gershom’s ruling was regarding private correspondence which was only to be known by the two parties. Where and when did Rav Scheinberg ZTL (which one as he probably has a son and likewise had a father )write about reading leaked emails?