code: def send_mass_mail(
      datatuple, fail_silently=False, auth_user=None, auth_password=None
  ):
      
      connection = SMTPConnection(
          username=auth_user, password=auth_password, fail_silently=fail_silently
      )
      messages = [
          EmailMessage(subject, message, sender, recipient)
          for subject, message, sender, recipient in datatuple
      ]
      return connection.send_messages(messages)
docs: Send multiple emails to multiple recipients.
  
      Given a datatuple of (subject, message, sender, recipient_list), sends
      each message to each recipient list. Returns the number of e-mails sent.
  
      If auth_user and auth_password are set, they're used to log in.
  
      Note: The API for this method is frozen. New code wanting to extend the
      functionality should use the EmailMessage class directly.