The history of email entails an evolving set of technologies and standards that culminated in the email systems in use today.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/computing/history-of-email/en.wikipedia.org.md
Theo [van Gogh] rushed to his brother’s side, finding him in good spirits but within hours Vincent’s health began to fail, suffering from an infection resulting from the wound. He died in the early hours of Tuesday, 29 July [1890].
SNDMSG (Wikipedia) SNDMSG was an early electronic mail program, chiefly notable because it was used to send what is considered the first networked email.
