title: Email not validating completely with jQuery validation
body: <p>Email address not validating completely for example. i have a email field and i am validating it from jQuery validation plugin. when i put some like "abbcss" it says email is not valid. then i put "abbcss@g" the error is gone and as you can see the email is still not valid. for better understanding i put a fiddle here.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>$(document).ready(function(e) {
      $('#email').keyup(function(){
     $('#checkform').validate();
    });
  });</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;link href="//getbootstrap.com/dist/css/bootstrap.min.css" rel="stylesheet"/&gt;
  &lt;script src="//cdn.jsdelivr.net/jquery.validation/1.15.0/jquery.validate.js"&gt;&lt;/script&gt;
  
  
  &lt;form id="checkform"&gt;
  &lt;input id="email" type="email" name="email"&gt;
  &lt;/form&gt;
  &lt;hr&gt;
  &lt;p&gt;Try to put first "abcc" and click outside field &lt;/p&gt;
  &lt;p&gt;then try to put "abcc@gmail" and click outside field &lt;/p&gt;
  &lt;p&gt;it will consider it a valid email but actually it is not.&lt;/p&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>any help regarding this issue will be appriciate.</p>