def send_email(to, subject, template, **kwargs):
app = current_app._get_current_object()
msg = Message(app.config['FLASKY_MAIL_SUBJECT_PREFIX'] + ' ' + subject,
sender=app.config['FLASKY_MAIL_SENDER'],
recipients=[to])
msg.body = render_template(template + '.txt', **kwargs)
msg.html = render_template(template + '.html', **kwargs)
msg.IsBodyHtml = True
thr = Thread(target=send_async_email, args=[app, msg])
thr.start()
return thr
