I configured BIND in RHEL 6 and the following error comes.

Starting named:
Error in named configuration:
db.infinex.info:4: no TTL specified; using SOA MINTTL instead
db.infinex.info:10: NS record '' appears to be an address
db.infinex.info:12: warning: '': MX is an address
zone infinex.info/IN: NS '' has no address records (A or AAAA)
zone infinex.info/IN: not loaded due to errors.
_default/infinex.info/IN: bad zone

My vim /var/named/chroot/etc/named.conf

options {
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
forwarders { ; };
include "/etc/rndc.key";
// We are the master server for infinex.info
zone "infinex.info" {
type master;
file "db.infinex.info";

My vim /var/named/chroot/var/named/db.infinex.info

; Addresses and other host information.
@ IN SOA infinex.info. hostmaster.infinex.info. (
10118 ; Serial
43200 ; Refresh
3600 ; Retry
3600000 ; Expire
2592000 ; Minimum
); Define the nameservers and the mail servers
IN MX 10 infinex.info.

Any Help Thanks