possible issue with sendmail 8.13.3 on 11.11

[sko1270]

Hello,
We have recently upgraded sendmail on this box from 8.9.3 to 8.13.3 and the mail guy is seeing something that he does not think is quite right. There are multiple queue runners running and we are not sure if this is normal. Here is a ps -ef of the processes. Does this look normal or is there something misconfigured.
Thanks in advance.

root 28682 1 0 23:59:06 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 16687 1 0 Sep 10 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 12854 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 28679 1 0 23:59:06 ? 0:03 sendmail: accepting connections
root 11527 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 5581 1 0 Sep 9 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 11083 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 9443 1 0 Sep 10 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 11685 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 12679 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
smtpadm 4302 4272 1 11:56:53 pts/0 0:00 grep send
root 12368 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue
root 13110 1 0 Sep 11 ? 0:00 sendmail: Queue runner@00:30:00 for /var/spool/mqueue