DNS Issues

[MelvinM]

I can send recieve through my yahoo.com account and this exchange server fine, then I get a Failure Delivery:
[Sorry, I couldn't find a mail exchanger or IP address. (#5.4.4)]

This a nslookup on my exchange server... This looks wrong.. any idea where to begin?


> set type=mx
> mydomain.com
Server: dns1.xxx.xxxx.net
Address: xx.xxx.xxx.xx

Non-authoritative answer:
mydomain.com MX preference = 10, mail exchanger = mailserver.mydomain.com

com nameserver = G.GTLD-SERVERS.NET
com nameserver = H.GTLD-SERVERS.NET
com nameserver = I.GTLD-SERVERS.NET
com nameserver = J.GTLD-SERVERS.NET
com nameserver = K.GTLD-SERVERS.NET
com nameserver = L.GTLD-SERVERS.NET
com nameserver = M.GTLD-SERVERS.NET
com nameserver = A.GTLD-SERVERS.NET
com nameserver = B.GTLD-SERVERS.NET
com nameserver = C.GTLD-SERVERS.NET
com nameserver = D.GTLD-SERVERS.NET
com nameserver = E.GTLD-SERVERS.NET
com nameserver = F.GTLD-SERVERS.NET


Thank you.

 

[ChrisAC]

Sorry, are you getting a failure when trying to send mail to your domain or when you are trying to send to another address?

Chris.


**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[MelvinM]

I get the failure sending to my domain. I have a feeling our dns servers are not setup correctly. I can send back and forth a dozen times then I get:

Message from yahoo.com.
Unable to deliver message to the following address(es).

<melvin@mydomain.com>:
Sorry, I couldn't find a mail exchanger or IP address. (#5.4.4)

I'm using the DNS server of our provider in Asia, w/ the IP of our provider in the US for the the US Exchange machine. Reason is we don't have a DNS machine yet and this was a quick solutions.... one that I am wondering if is the root of the problem. The Asia DNS machine has an MX record for the US exchange machine. It works great for a dozen mails, then errors out..

Thanks

 

[ChrisAC]

What's the domain?

Chris.


**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************