title: Email verification
body: <p>I'm creating a newsletter subscription app. I want to implement email verification to prevent spam/bot signups (well, at least so I can delete them afterwards). I've been struggling with confirmation key but though of a simpler solution:</p>
  
  <ol>
  <li>User clicks submit -> is inputed into database (verified = 0)</li>
  <li>User receives generic email ("Click me to verify") -> Verified page (verified = 1)</li>
  </ol>
  
  <p>Would this work? Are there any potential issues which might come up? </p>