Corporate Emails Repository

Hey all,

Bit of a different design type of question. A portion of our game will involve reading emails/books much like Deus Ex: Human Revolution/Mankind Divided or Cyberpunk 2077. I am looking for more technical/detailed documents from such a corporate setting and wondered if anyone knows of places where I might find this sort of thing. Right now I've been working through the DNC email leak which is moderately helpful but is mostly a lot of meh. Other places I have done research in are the Office of the Historian and a bit in the US' National Archives but obviously those are political more than corporate. I don't have a preference on field or subject as I'm mainly looking to train my writing senses enough that I can make our narrative content feel authentic, if not accurate. That said, anything you guys might know of will certain be helpful.

Thanks!