Which of course is impossible unless in all the years she was SoS she never sent any emails to the White House or vice versa.
One must understand, there was never any great emotional attachment between Herself, Madame Benghazi, the Cold & Joyless, and the Current Occupant of the White Hut. So the paucity of communication is not altogether surprising.
Most of the exchanges were on Post-It notes, which do not go through the servers.