A code for a new account by email

Opening an account by email now asks for the six-digit code the email carries, typed on the page where you asked for it, instead of a link click. An address with an account gets one email with its link and a code, so signing in is still one click. Every address sees the same page, "check your email", so the page never says whether an address has an account. New accounts by email are not opened from data-centre or VPN networks, and no email comes: use Google there, or write to support@withruntime.com. An address gets at most five sign-in emails an hour, and ten wrong code tries a day; past that, its email has only the link.