help with /var/log/sendmail.st rotation

[Ernie Luzar]

I have the following in rc.conf to turn off sendmail

sendmail_enable="NO"
sendmail_submit_enable="NO"
sendmail_outbound_enable="NO"
sendmail_msq_queue_enable="NO"

and commented out the following line in newsyslog.conf
#/var/log/sendmail.st

But I still see that the /var/log/sendmail.st file it being rotated 
every 7 days with a file size of zero.

Something else is still rotating that file.
Any suggestion of how to disable the rotating of this file?