March 2016 was during the MYE so called investigation. Here’s a timeline that might help in trying to figure out some of the emails. Sorry it’s google docs, but I’ve had it bookmarked for a year and it’s still being updated. Good resource IMO.
https://docs.google.com/spreadsheets/d/1cialWWJ907vV3b9HPS2lhEspZh0WoPHqixUuKed_hFI/htmlview