I recently encountered this thing, which I'd never seen before: https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address https://html.spec.whatwg.

I recently encountered this thing, which I'd never seen before: https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address https://html.spec.whatwg.org/multipage/input.html#valid-e-ma... The original standard for email addresses seems to be so bad that it's just being scrapped and ignored. I think I'm OK with this.