task.py

def welcome_notifications(user, entrypoint):
    # ===== Welcome email =====
    subject = _('Welcome to %(entrypoint_name)s') % {'entrypoint_name': entrypoint.name}
    from_email = settings.DEFAULT_FROM_EMAIL
    to = user.email

    context = {
        'user': user,
        'entrypoint': entrypoint
    }

    text_content = render_to_string('email/welcome.txt', context)
    html_content = render_to_string('email/welcome.html', context)

    msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
    msg.attach_alternative(html_content, "text/html")
    msg.send()