allowing html emails is still the largest risk that pretty much every org is intentionally accepting send toot

@cR0w ok ok, what about...

Markdown emails!

I'm only half-joking. Out of the box plaintext compatible, and let's one use the basic formatting that most people would want/use... but without all the HTML baggage.

@draeath No. No hyperlinks. No embedded images. Text and attachments only.
@cR0w sounds like a job for the markdown rendering engine client-side.
@draeath I don't want users to see misleading images or clicking links, even on accident. So I don't want anything rendered but text.