[tyingq]

Mailcheck is also helpful to catch things like "[e-mail]" and other common typos when the user types it in:

https://github.com/mailcheck/mailcheck

Fork modified for React: https://github.com/eligolding/react-mailcheck#readme

[justinator]

I somewhat lol'd when the demo allowed "[e-mail]" just fine. Guess kickstarter isn't using mailcheck anymore. Looks like it's an open issue:

https://github.com/mailcheck/mailcheck/issues/179

[tyingq]

Oh, yeah, that's not good. Not sure why they didn't just repoint to the suggested https://codepen.io/ianneub/pen/BajKKBy demo.