def METHOD_NAME(user, new_email):
    data = [str(current_user.fs_uniquifier), hash_data(current_user.email), new_email]
    token = _security.confirm_serializer.dumps(data)
    confirmation_link = url_for('security.confirm_change_email', token=token, _external=True)
    subject = _('Confirm change of email instructions')
    send_mail(
        subject=subject,
        recipient=new_email,
        template='confirmation_instructions',
        user=current_user,
        confirmation_link=confirmation_link
    )