Lame Server Nuisance

My server has captured a large volume of error logs related to lame server especially on reverse DNS lookup. Put it simply, a lame server is one that is not responding to a name request it is expected to handle. Network administrators are in general lazy. They do not spend effort in properly setting the reverse lookup of domain records.
For me, I have to eliminate the large volume of lame server logs. The way to do it is add the following in /var/named/chroot/etc/named.conf :

logging {
category lame-servers { null; };
};