I don't think we know where it was physically located. They are probably referring to DNS records in this article: http://bigstory.ap.org/article/b78ba433af3a

I don't think we know where it was physically located. They are probably referring to DNS records in this article: http://bigstory.ap.org/article/b78ba433af3a45209668f745158d994c/clinton-ran-homebrew-computer-system-official-emails http://bigstory.ap.org/article/b78ba433af3a45209668f745158d9... This is another case where I wish they would just get some IT expert to look at the evidence and explain it technically (not dumbed down, not for a layperson). Maybe only technical people would understand, but at least the media record would be accurate.