I have an install running on a openvz vps. I has been in production for two months. Two days ago the load on the vps has been increasing. I have narrowed it down to Sendmail. When I stop the service all returns normal. The Sendmail queue is empty. I don't know why sendmail is increasing the load. Any ideas on what I can check. /usr/sbin/sendmail -bp returns no mail in queue.