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c7oiFlag for United States of America

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DNS Server Does not resolve MX Record

We have a Windows 2003 DC and Windows 2008 R2 domain.  DNS servers are install on both DCs.  We host our own domain zone and host our own DNS servers.

Using nslookup , the DNS servers only resolve NS and SOA record . They does not resolve MX , PTR and ... records .The result outcome from querying MX record is like below:

domain.com
     primary name server = ns01.domain.com
     responsible mail addr = admin.domain.com
     serial = 24376
     Refresh  = 900
     Retry = 600
     Expire = 86400
     default TTL = 3600

I am able to resolve other external required:

> set q=mx
> google.com

Non-authoritative answer:
google.com      MX preference = 40, mail exchanger = alt3.aspmx.l.google.com
google.com      MX preference = 10, mail exchanger = aspmx.l.google.com
google.com      MX preference = 50, mail exchanger = alt4.aspmx.l.google.com
google.com      MX preference = 30, mail exchanger = alt2.aspmx.l.google.com
google.com      MX preference = 20, mail exchanger = alt1.aspmx.l.google.com

alt3.aspmx.l.google.com internet address = 173.194.76.27
aspmx.l.google.com      internet address = 74.125.129.27
alt4.aspmx.l.google.com internet address = 74.125.131.27
alt2.aspmx.l.google.com internet address = 74.125.137.27
alt1.aspmx.l.google.com internet address = 74.125.142.27

What can I do to resolve this?
Avatar of Cliff Galiher
Cliff Galiher
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Well, not resolving a PTR record may be nothing PTR records rely on a different zone by design. So if you have not created reverse zones, PTR records will, of course, not resolve.

However, not much is given, a partial zone file or screenshots of the DNS zones and nslookup outputs from failed queries would be helpful.
If your local domain is the same as your internet domain then your DNS resolution will not forward requests for domains it already knows about. Is your LAN FQDN "domain.com" or do you have it set like "domain.local" or something else that is different?

You might also look at your configurations for the "company.com" zone in the DNS server to verify that is has entries for all of the hosts you want to resolve. If they do not exist, add them.
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Mahesh
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ASKER

> set type=all
> domain.com
Server:  dc01vm.domain.com
Address:  10.10.101.40

domain.com      internet address = 192.168.1.73
domain.com      internet address = 192.168.1.4
domain.com      internet address = 10.10.101.42
domain.com      internet address = 10.10.101.40
domain.com      internet address = 74.62.220.181
domain.com      internet address = 10.10.101.0
domain.com      internet address = 173.x.x.0
domain.com      internet address = 10.10.101.37
domain.com      internet address = 192.168.1.8
domain.com      nameserver = itserver001.domain.com
domain.com      nameserver = dc02vm.domain.com
domain.com      nameserver = jupiter.domain.com
domain.com      nameserver = dc03vm.domain.com
domain.com      nameserver = dc01vm.domain.com
domain.com
        primary name server = dc01vm.domain.com
        responsible mail addr = administrator.domain.com
        serial  = 461767
        refresh = 900 (15 mins)
        retry   = 600 (10 mins)
        expire  = 86400 (1 day)
        default TTL = 3600 (1 hour)
domain.com      MX preference = 10, mail exchanger = 192.168.1.22
itserver001.domain.com  internet address = 192.168.1.8
dc02vm.domain.com       internet address = 10.10.101.42
jupiter.domain.com      internet address = 192.168.1.4
dc03vm.domain.com       internet address = 192.168.1.73
dc01vm.domain.com       internet address = 10.10.101.40
>
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Avatar of debashish mohanty
debashish mohanty

good article