this is bad? named errors?

[arisan]

--------------------- Named Begin ------------------------

**Unmatched Entries**
network unreachable resolving '16.192.72.165.sbl.spamhaus.org/TXT/IN': 2001:7b8:3:1f:0:2:53:1#53: 1 Time(s)
network unreachable resolving '16.192.72.165.sbl.spamhaus.org/TXT/IN': 2001:7b8:3:1f:0:2:53:2#53: 1 Time(s)
network unreachable resolving '89.167.165.60.in-addr.arpa/PTR/IN': 2001:500:13::c7d4:35#53: 1 Time(s)
network unreachable resolving '89.167.165.60.in-addr.arpa/PTR/IN': 2001c0:4001:1:0:1836:0:140#53: 1 Time(s)
network unreachable resolving 'apes.in/NS/IN': 2001:500:4d::1#53: 1 Time(s)
network unreachable resolving 'ns1.differshy.com/AAAA/IN': 2001:503:231d::2:30#53: 1 Time(s)
network unreachable resolving 'ns1.differshy.com/AAAA/IN': 2001:503:a83e::2:30#53: 1 Time(s)
network unreachable resolving 'ns1.fieldmind.com/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns1.fieldmind.com/AAAA/IN': 2001:503:ba3e::2:30#53: 2 Time(s)
network unreachable resolving 'ns1.placeclear.com/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns1.placeclear.com/AAAA/IN': 2001:500:3::42#53: 1 Time(s)
network unreachable resolving 'ns1.placeclear.com/AAAA/IN': 2001:503:231d::2:30#53: 1 Time(s)
network unreachable resolving 'ns1.placeclear.com/AAAA/IN': 2001:503:a83e::2:30#53: 1 Time(s)
network unreachable resolving 'ns1.variedtrack.com/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns2.differshy.com/AAAA/IN': 2001:503:231d::2:30#53: 1 Time(s)
network unreachable resolving 'ns2.differshy.com/AAAA/IN': 2001:503:a83e::2:30#53: 1 Time(s)
network unreachable resolving 'ns2.fieldmind.com/AAAA/IN': 2001:503:ba3e::2:30#53: 2 Time(s)
network unreachable resolving 'ns2.fieldmind.com/AAAA/IN': 2001:503:c27::2:30#53: 1 Time(s)
network unreachable resolving 'ns2.placeclear.com/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns2.placeclear.com/AAAA/IN': 2001:500:3::42#53: 1 Time(s)
network unreachable resolving 'ns2.placeclear.com/AAAA/IN': 2001:503:231d::2:30#53: 1 Time(s)
network unreachable resolving 'ns2.placeclear.com/AAAA/IN': 2001:503:a83e::2:30#53: 1 Time(s)
network unreachable resolving 'ns3.oilsuch.com/AAAA/IN': 2001:503:ba3e::2:30#53: 2 Time(s)
network unreachable resolving 'ns3.oilsuch.com/AAAA/IN': 2001c3::35#53: 1 Time(s)
network unreachable resolving 'ns3.placeclear.com/AAAA/IN': 2001:503:ba3e::2:30#53: 2 Time(s)
network unreachable resolving 'ns3.placeclear.com/AAAA/IN': 2001c3::35#53: 1 Time(s)
network unreachable resolving 'ns4.coursearea.com/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns4.oilsuch.com/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns4.oilsuch.com/AAAA/IN': 2001:500:3::42#53: 1 Time(s)
network unreachable resolving 'ns4.oilsuch.com/AAAA/IN': 2001:503:231d::2:30#53: 1 Time(s)
network unreachable resolving 'ns4.oilsuch.com/AAAA/IN': 2001:503:a83e::2:30#53: 1 Time(s)
network unreachable resolving 'ns4.placeclear.com/AAAA/IN': 2001:503:ba3e::2:30#53: 2 Time(s)
network unreachable resolving 'ns4.placeclear.com/AAAA/IN': 2001c3::35#53: 1 Time(s)
network unreachable resolving 'ns5.0nj.ru/AAAA/IN': 2001:500:1::803f:235#53: 1 Time(s)
network unreachable resolving 'ns5.0nj.ru/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns5.0nj.ru/AAAA/IN': 2001:660:3005:1::1:2#53: 1 Time(s)
network unreachable resolving 'ns5.0ul.ru/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns5.0ul.ru/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns5.0ul.ru/AAAA/IN': 2001:660:3005:1::1:2#53: 1 Time(s)
network unreachable resolving 'ns5.0ul.ru/AAAA/IN': 2001:7fd::1#53: 1 Time(s)
network unreachable resolving 'ns6.0nj.ru/AAAA/IN': 2001:500:1::803f:235#53: 1 Time(s)
network unreachable resolving 'ns6.0nj.ru/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns6.0nj.ru/AAAA/IN': 2001:660:3005:1::1:2#53: 1 Time(s)
network unreachable resolving 'ns6.0ul.ru/AAAA/IN': 2001:500:2f::f#53: 1 Time(s)
network unreachable resolving 'ns6.0ul.ru/AAAA/IN': 2001:503:ba3e::2:30#53: 1 Time(s)
network unreachable resolving 'ns6.0ul.ru/AAAA/IN': 2001:660:3005:1::1:2#53: 1 Time(s)
network unreachable resolving 'ns6.0ul.ru/AAAA/IN': 2001:7fd::1#53: 1 Time(s)

---------------------- Named End -------------------------

[arisan]

I do not understand it means

[veronica]

Your network cannot resolve. DNS issue.

[arisan]

the configuration of the named is the same as explained in the zimbra wiki, the problem is I can not resolve external networks or my own network?

thanks

[veronica]

As per the logs you pasted, its external.

[liverpoolfcfan]

Are you using IPv6 in your environment ?

All these entries appear to be IPv6 lookups. If you are not using IPv6 then you should disable the functionality.