In the FBI’s report on the Clinton email investigation, which is released on this day, it is revealed: “To date, the FBI has recovered from additional data sources and reviewed approximately 17,448 unique work-related and personal emails from Clinton’s tenure [as secretary of state] containing Clinton’s firstname.lastname@example.org email address that were not provided by [Clinton’s law firm] Williams & Connolly as part of Clinton’s production to the FBI, including emails from January 23, 2009 through March 18, 2009.”
The report also mentions that at least some of the emails going back to the time from before March 2009, when Clinton’s first server was replaced by another one, were recovered from the first back-up of all the data on Clinton’s third server, made on June 29, 2013. That was shortly after this new server was turned on and all the data from the previous server was transferred to it.
Clinton has claimed that she kept 30,068 emails from when she was secretary of state, and deleted the other 31,830 as personal. The FBI claims they had trouble recovering all the deleted ones, because an employee of Platte River Networks, the company that managed Clinton’s servers from June 2013 onwards, used a computer program to wipe the server clean in March 2015. (Federal Bureau of Investigation, 9/2/2016)
It isn’t clear how many of the 17,448 recovered emails come from the June 29, 2013 back-up and how many come from other sources, such as the inboxes of people who sent and received emails from Clinton, or FBI efforts to recover the wiped emails. The FBI also doesn’t mention how many of the recovered emails are work-related. It was reported on July 21, 2016 that the FBI gave about 14,900 of Clinton’s recovered emails to the State Department, and the department has promised to make all the work-related ones public. But it isn’t clear why the 17,448 and 14,900 numbers differ by about 2,500 emails.