XFOR: Adding Third DNS Server Causes SMTP to Not Use MX Records
Article ID: 159932
Article Last Modified on 9/30/2003
APPLIES TO
- Microsoft Commercial Internet System 1.0 Service Pack 2
This article was previously published under Q159932
SYMPTOMS
When using Microsoft Mail Server, you may experience a parsing failure if
the SMTP server fails to correctly parse the Domain Name System(DNS) names.
However, the mail messages should still be delivered to the host indicated
on the MX record.
Also, if you add a third DNS server, it can cause the SMTP server to use
the "A" record when it should be using the MX record.
RESOLUTION
Upgrade to MCIS Service Pack 1 (SP1). The DNS list parsing code in the
Smtpsvc.dll file which causes this problem was updated, and the SMTP server
now correctly parses DNS names.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Commercial
Internet System version 1.0. This problem has been corrected in the
latest U.S. Service Pack for Microsoft Commercial Internet System
version 1.0. For information on obtaining the Service Pack, query
on the following article in the Microsoft Knowledge Base:
183062
MCIS 1.0 Service Packs 1 and 2 Information
Keywords: kbbug kbfix KB159932