Mutt
The history of email
My first access to “the internet” was through a dialup modem on a VAX at the FDA. I was a summer intern there through my college career and then worked full time after graduation and before grad school. My email address ended in .bitnet. I could mail some places but not others. One of the places I couldn’t send mail was to my friends back on campus.
A few of those friends were computer science majors, so one weekend they tried to help me troubleshoot things. . There were text files that they ended up searching through looking up how to send mail from .bitnet to .edu. But it was all a baffling experience. Why couldn’t it just work? I had email, they had email, why could we not talk?
I never did figure out how to send email to campus from .bitnet.
Eventually, the FDA moved from BITNET to the internet and I had a .gov address. I could send mail around just by getting the recipients’s address. But the mystery of why I could mail some .edus and not others still lingers. I wonder what our setup was that we couldn’t send mail. I’ll probably never know. I don’t even have enough details to explain the problem to someone who would know. I suspect the answer will be “bang paths” or “host.txt” files, but I really don’t know.