<JJC_MN@discussions.microsoft.com> wrote:

>I'm using IIS 5.0 on a W2k server with GFI spam filtering to relay for my
>domain. Today I started getting failed email messages. I tested my DNS MX
>configuration with NSLOOKUP and noticed that NSLOOKUP is appending my domain
>name even when I enter a FQDN of other domains while testing. It's as if
>NSLOOKUP is treating all domains on the Internet as a host on my domain. EX:
>If I type novell.com after setting querytype=MX it replies with
>"novell.com.mydomain.com" . This points to me as handling email for
>"novell.com" because it treats novell.com as a host on my domain. Setting
>different DNS name servers, external or internal to my domain does not fix
>this problem. Reboots don't help either
>
>Is NSLOOKUP reflecting the problem correctly or is this not a good tool to
>use. I have windows automatic updates enable and I'm fearing an update might
>be causing this problem. If NSLOOKUP is reporting the problem correctly do
>you have any idea why my system is now appending my domain to all domains?