text: from flask import current_app, render_template
  from flask.ext.mail import Message
  from . import mail, celery
  
  
  @celery.task
  def send_async_email(msg):
      mail.send(msg)
  
  
  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)
      send_async_email.delay(msg)
  