That's the one thing that rubs me the wrong way about Dr. Shiva. He did not invent "EMAIL" or the name, which he claims to have done as a 14-year-old in 1978. I was using Arpanet-based email in 1973. (Because of the lack of password security, I was able to read Marvin Minsky's MIT email over the Arpanet from Caltech that summer. I don't recall it mentioning Epstein.)
I had always considered his claim to have some validity.
Way back, when he first popped, someone indicated that he was involved in establishing exchange server protocol and code.
YMMV