Registration on Firebase and FlutterFlow is not removed if the email is not verified. Email verification does not have an expiration date to remove unverified emails.
Users can simply register with a random email address and not verify it, meaning that the real person with that email address can no longer register. Is there any way to make the verification email expire? For example, if the user does not verify their address within 24 hours, their address should be deleted, and the email address should become available again.