He was working for Bolt Beranek and Newman, the company that developed the first program for sending network email. “A true technology pioneer, Ray was the man who brought us email in the early days of networked computers,” his employer, Raytheon, said in a statement. When Tomlinson invented the user@host standard for email addresses, it was applied at DARPA’s ARPANET, the Internet’s precursor. The first message was sent between two machines that were literally side by side connected only through ARPANET. “When I was satisfied that the program seemed to work, I sent a message to the rest of my group explaining how to send messages over the network. The first use of network email announced its own existence,” Ray has explained his invention.