Configuring a Machine to do DNS lookups

Hi,

I have a Windows 2000 Server that I want to use to Relay
Outgoing Emails. The problem is that the Server cannot
do DNS Lookups for destination domains.

Please help

Cheers, Wina

Bernard
Sat Oct 11 23:57:59 CDT 2003

a) enable DNS lookup then. allow outgoing tcp 53 dns query
XCON Windows 2000 and Exchange 2000 SMTP Use TCP DNS Queries
http://support.microsoft.com/?id=263237

b) forward to 'smart host' using [ip.ip.ip.ip] format -
XCON How to Set Up Windows 2000 as a SMTP Relay Server or Smart Host
http://support.microsoft.com/?id=293800


--
Regards,
Bernard Cheah
http://support.microsoft.com/
Please respond to newsgroups only ...



"Wina" <mary.evans@vodafone.com.fj> wrote in message
news:04f301c39049$4e38bf20$a001280a@phx.gbl...
> Hi,
>
> I have a Windows 2000 Server that I want to use to Relay
> Outgoing Emails. The problem is that the Server cannot
> do DNS Lookups for destination domains.
>
> Please help
>
> Cheers, Wina

jcochran
Mon Oct 13 09:36:00 CDT 2003

On Sat, 11 Oct 2003 15:45:01 -0700, "Wina"
<mary.evans@vodafone.com.fj> wrote:

>I have a Windows 2000 Server that I want to use to Relay
>Outgoing Emails. The problem is that the Server cannot
>do DNS Lookups for destination domains.

Make sure you have a DNS server that can resolve outside your network
(forwards to one or *is* outside your network) in the TCP/IP
properties of your network card. make sure your firewall allows DNS
through from your servr to the outside.

Jeff

Agent
Mon Oct 13 12:49:35 CDT 2003

On Mon, 13 Oct 2003 14:36:00 GMT, jcochran.nospam@naplesgov.com (Jeff
Cochran) wrote:

>On Sat, 11 Oct 2003 15:45:01 -0700, "Wina"
><mary.evans@vodafone.com.fj> wrote:
>
>>I have a Windows 2000 Server that I want to use to Relay
>>Outgoing Emails. The problem is that the Server cannot
>>do DNS Lookups for destination domains.
>
>Make sure you have a DNS server that can resolve outside your network
>(forwards to one or *is* outside your network) in the TCP/IP
>properties of your network card. make sure your firewall allows DNS
>through from your servr to the outside.


It's worth noting that some applications (e.g. Windows's nslookup)
are quite happy to resolve DNS using UDP on port 53, but IIS's SMTP
requires TCP on port 53. This certainly caused me a bit trouble
when I could happily resolve external addresses but where IIS's SMTP
service refused to forward external emails because it used TCP for
sending its DNS queries.

So make sure any router access-lists and firewall rules allow both UDP
and TCP out on port 53 to the DNS server(s).



HammY