title: Django: How to check if something is an email without a form
body: <p>I have HTML form to post in Django View and because of some constraints, it's easier for me to do the <code>validation</code> without the usual Django form classes. </p>
  
  <p>My only reason to use Django Forms is Email Field(s) that are entered. </p>
  
  <p>Is there any function to check if something is an <code>email</code> or I have to use the <code>EmailField</code> to check and validate it?</p>