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Exchange 2003 Event ID 2013 and 2012 errors

We are getting Event ID 2013 and 2012 errors on our Microsoft 2003 Enterprise Server that is saying SMTP could not connect to the DNS server and the Exchange server is a DNS server and also SMTP could not connect to any DNS server.  Either none are configured or all are down.  E-mail flow appears to be unaffected but this error is troublesome.  We have two DNS servers.  Pinging each other does not produce an error. Running DCDIAG /TEST:DNS /v produced a FAIL message on FORW and it said our domain has failed?   Any assistance offered would be greatly appreciated.  
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regsamp
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regsamp
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1 Solution
 
MegaNuk3Commented:
Have you checked the SMTP connectors to see if they have been set to use external DNS servers? These servers may no longer exist or be contactable...
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MegaNuk3Commented:
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regsampAuthor Commented:
"Have you checked the SMTP connectors to see if they have been set to use external DNS servers? These servers may no longer exist or be contactable."  Where is this setting exactly to check?  
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MegaNuk3Commented:
In exchange system manager - administrative groups/first administrative group/servers/servername/protocols/SMTP/default virtual server - properties. Deliver tab, Advanced button, Configure external DNS servers.
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regsampAuthor Commented:
Thank you Mega.  I am checking that now and looking at the links you posted.  
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regsampAuthor Commented:
The servers are not configured to use external DNS servers.  
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MegaNuk3Commented:
Ok then what DNS servers is the server itself configured to use (from ipconfig /all)?

Are these DNS servers configured to do internet DNS lookups with forward lookups?

If you nslookup www.yahoo.fr from the command prompt on the exchange server what does it return?
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regsampAuthor Commented:
The server is set to use itself and the other internal DNS server from ipconfig /all
Where can I confirm the settings for Internet DNS lookups with forward lookups?  
Running nslookup for www.yahoo.fr from the command prompt returns this server and the IP address and the Non-authoriative answer:
Name:     rc.a07.yahoodns.net
Address: 206.190.60.37.
Aliases www.yahoo.fr. rc.yahoo.com
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MegaNuk3Commented:
Start-->Administrative Tools-->DNS-->Properties on your servername-->Forwarders
Do you have any external IP addresses listed? If not then DNS will use Root Hints to find external DNS...
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MegaNuk3Commented:
so configure forwarders to point to your ISPs DNS servers (or router if it can resolve DNS) and then you shouldn't get anymore events...
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regsampAuthor Commented:
There are no external IP addresses listed.  
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MegaNuk3Commented:
add external DNS server IP's to the forwarders then as per my earlier comment.
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regsampAuthor Commented:
Okay, and my ISP provider should have a listing of there DNS servers, correct?  
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MegaNuk3Commented:
yep, or they should have given you their DNS server names when they setup your link to them, but those DNS server names may be out of date so it is worth checking with your ISP, either on their website or by phone...
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regsampAuthor Commented:
Okay and thank you Mega.  
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MegaNuk3Commented:
Thanks for the points, have the events stopped now you have added forwarders?
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regsampAuthor Commented:
No but I am confident they will once I contact my ISP.  Thanks.  
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MegaNuk3Commented:
You can always wait till the solution works 100% before closing the question, I don't mind waiting to find out if something worked properly or not.
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