title: Validate email addresses?
body: <p>There is a library I use called <code>validate_email</code> which I use to determine if an email address is valid. However, it can only check the domain name.</p>
  
  <p>For example, there is an email address <code>ppetrov@omirussia.ru</code> which really exists. If I try to check that that with the code below, it returns <code>True</code>.</p>
  
  <pre><code>from validate_email import validate_email
  
  email = 'ppetrov@omirussia.ru'
  is_valid = validate_email(email, verify=True)
  </code></pre>
  
  <p>However, the email address <code>petrov@omirussia.ru</code> <em>doesn't</em> exist, and when I try to check that it returns <code>True</code> too.</p>
  
  <p>Is any way to check the part of email address before the <code>@</code>?</p>