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External DNS in EXCHANGE 2003 SBS 2003

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External DNS in EXCHANGE 2003 SBS 2003 - 7.Apr.2008 8:00:24 PM   
zllauh

 

Posts: 1
Joined: 28.Oct.2007
Status: offline
Hi Guys,

I am a newbie and trying to get better and better with SBS :)

Recently we have started to recieve few of this errors

Event Type: Warning
Event Source: smtpsvc
Event Category: None
Event ID: 2012
Date: 7/04/2008
Time: 3:14:27 PM
User: N/A
Computer: MASVR01
Description:
SMTP could not connect to the DNS server '192.168.0.5'. The protocol used was 'UDP'. It may be down or inaccessible.

For more information, see Help and Support Center at go.microsoft.com/fwlink/events.asp.
Data:
0000: d5 04 00 00 Ň...

and

Event Type: Error
Event Source: smtpsvc
Event Category: None
Event ID: 2013
Date: 7/04/2008
Time: 3:14:27 PM
User: N/A
Computer: MASVR01
Description:
SMTP could not connect to any DNS server. Either none are configured, or all are down.

For more information, see Help and Support Center at go.microsoft.com/fwlink/events.asp.
Data:
0000: 7c 26 00 00 |&..

I was searching for info on the net and found this

forums.msexchange.org/m_180038400/tm.htm

which sounds a bit like the problem i am facing ,

how ever i have not heard from any user saying that mail to a particular domain is bouncing.

Now my question is that we dont have an external dns cofigured for our virtual server .

Does one need to have this ?

if so , everything was working fine so far :S

how ever i realised that this can be done by

Open your ˘Exchange system manager÷-> ˘Administrative groups÷->÷First Administrative group÷->÷Servers÷-˘Your Server÷->÷Protocols÷->÷SMTP÷->­ Right Click ˘Default Virtual Server÷->÷Properties÷->÷Deli­ very÷->Press ÷Advanced÷ Button->Press ˘Configure÷ Button near the ˘Configure external DNS servers÷->

comments and suggestions are heartly welcomed.

cheers,

zllauh
Post #: 1
RE: External DNS in EXCHANGE 2003 SBS 2003 - 19.Apr.2008 9:31:01 AM   
jveldh

 

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline
Zllauh,

It looks like you are using an internal DNS server, can you try the following in a DOS box:

- ping 192.168.0.5, checks if you can reach the dns
- nslookup www.microsoft.com

If both work your server can reach your DNS so it should work.

Johan

_____________________________

Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to zllauh)
Post #: 2
RE: External DNS in EXCHANGE 2003 SBS 2003 - 19.Apr.2008 11:32:07 AM   
t0ta11ed

 

Posts: 288
Joined: 2.Feb.2007
From: Mars
Status: offline
You don't need to configure an external DNS as Exchange relies on your internal. Assuming it can connect to the internal DNS server with no issues, you should forward any requests the intneral DNS can't resolve to an external name server. This will allow Exchange to resolve MX records for domains it is sending mail to. Again though, this is assuming your internal DNS is working properly and Exchange is able to connect to it.

_____________________________

Invasion Plans - http://dev.marzopolis.com

(in reply to jveldh)
Post #: 3

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