Pretty sure somebody has already posted this here, but it's worth re-posting over and over again!
https://useplaintext.email/
Thanks to #SourceHut for putting this together!
@rysiek The RTL objection is a good one:
https://news.ycombinator.com/item?id=20514414
Similarly, virtually any non-Roman characterset.
That said, yes, I'm a fan of ASCII / plain-text email where that is even remotely possible.
@rysiek The cake, howver, was not a lie:
https://news.ycombinator.com/item?id=20516358