Marco Alka Thanks for the feedback. The project is pretty much work in progress as I'm trying to iron out different quirks with the prototype. "How would you handle users without an installed mail client?" Indeed this is a problem, especially on Desktop (Windows more so). The sistem will have a fallback with magic links, as in you type in your email and receive an authentication link in your inbox. I'm also playing around with a couple of other options. If the mailto: links doesn't trigger an installed app, the login button will turn into 3 (gmail, outlook, yahoo). Clicking on either one of them will open the web version (like Gmail web) with the path set to compose a new email with everything prefilled. "Also, how would you handle a mail from "sexyperson123@gmail.com" " The name of the person is extracted from the FROM header of the email which also includes a name. It actually looks something like this "Alan Harper sexyperson123@gmail.com ". Most people do have their actual names configured in Gmail, even though their email address is something funny looking. And, lastly, websited will also have the usual Edit Your Account page where you can change the detected name if it's not right. The idea behind this is to speed up signing up to a website so you don't have to fill in any form field.