I had to do a lot of reading before I understood what this guy is going on about.
- 12 years after the first email-like messages were sent/received at MIT;
- 7 years after BBN first transmitted mail between machines;
- 5 years after RFC 561;
- 3 years after the first commercial email service (Tymshare);
- 2 years after RFC 733
... He wrote some software with the name "EMAIL".
When claiming to have invented something, it is best to have created it before the first RFC on the subject.
Just sayin'