Client Cannot Resolve MX Record via Microsoft DNS Server

• Microsoft Windows NT Server version 4.0
• Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

When you use a Microsoft Windows NT version 4.0 Domain Name Service (DNS) server, your clients may not be able to successfully resolve mail server names to IP addresses.

CAUSE

The DNS client is sending a recursive query to the Microsoft DNS server, which is forwarding that query to a BIND-based DNS server. Some BIND-based DNS servers return a Start of Authority (SOA) record with a Responsible Authoritative Mailbox field instead of a Mail eXchange (MX) record. If the authoritative DNS server for the domain in which the mail server resides is one of these BIND-based DNS servers, the Microsoft DNS server will not return that record to the client.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Keywords : kb3rdparty kbnetwork NT4SP4Fix kbbug4.00 ntnetserv nttcp kbfix4.00.sp4 NTSrv
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug