Article: Q198551
Product(s): Microsoft Windows NT
Version(s): winnt:4.0,4.0a
Operating System(s):
Keyword(s):
Last Modified: 10-AUG-2001
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The information in this article applies to:
- Microsoft Windows NT Server, Enterprise Edition version 4.0
- Microsoft Windows NT Server version 4.0
- Microsoft Windows NT Workstation version 4.0
- Microsoft BackOffice Small Business Server versions 4.0, 4.0a
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SYMPTOMS
========
If you use Nslookup.exe to query for a Mail Exchanger record (MX), it may fail
with the following error:
*** Request to <dnsserver.example.microsoft.com> timed-out
NOTE: <dnsserver.example.microsoft.com> is the host name of the DNS server
you are querying.
CAUSE
=====
If the DNS server that you are querying has an MX record in the DNS zone similar
to
domainname.example.microsoft.com. MX 10 192.168.1.1
you may see the error mentioned above.
RESOLUTION
==========
Change the MX record to point to a host name that will then, in turn, resolve to
the same IP address. For example, in the domainname.com zone, make the following
change:
domainname.example.microsoft.com. MX 10 host1.domainname.example.microsoft.com
host1 A 192.168.1.1
STATUS
======
This behavior is by design. According to RFC 974:
Each MX matches a domain name with two pieces of data, a preference value (an
unsigned 16-bit integer), and the name of a host.
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Keywords :
Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400 kbAudDeveloper kbSBServSearch kbSBServ400 kbSBServ400a
Version : winnt:4.0,4.0a
Issue type : kbprb
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