self.html_content = html_content
threading.Thread.__init__(self)

def run(self):
    msg = EmailMessage(self.subject, self.html_content, EMAIL_HOST_USER,
        self.recipient_list)
msg.content_subtype = 'html'
msg.send()

def send_html_mail(subject, html_content, recipient_list):
    EmailThread(subject, html_content, recipient_list).start()
how to send asynchronous email using django  