Exchange 2003 server sp2: service doesn't start on startup


In my lan, I have 2 windows 2003 enterprise server service pack 1 server. One server is a domain controller and other one is an Exchange 2003 service pack 2.

I wonder whenver I restart the exchange server, it show the following error in the event log and services like the system attendant, information store, stack exchange doesn't start all all. below is the event log message:

Event Type:      Error
Event Source:      Userenv
Event Category:      None
Event ID:      1030
Date:            4/3/2006
Time:            3:55:49 PM
User:            NT AUTHORITY\SYSTEM
Computer:      DPCMAIL
Windows cannot query for the list of Group Policy objects. Check the event log for possible messages previously logged by the policy engine that describes the reason for this.


Event Type:      Error
Event Source:      MSExchangeDSAccess
Event Category:      Topology
Event ID:      2104
Date:            4/3/2006
Time:            3:55:44 PM
User:            N/A
Computer:      DPCMAIL
Process INETINFO.EXE (PID=1556). All the DS Servers in domain are not responding.

Event Type:      Error
Event Source:      MSExchangeSA
Event Category:      General
Event ID:      1005
Date:            4/3/2006
Time:            3:55:43 PM
User:            N/A
Computer:      DPCMAIL
Unexpected error The server is not operational. Facility: Win32 ID no: 8007203a Microsoft Exchange System Attendant  occurred.

what is the problem?


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When did this start?
Were any changes made to the Exchange/AD setup?
Are you able to start the Exchange services manually?
Install and run the following tool and see if it reports anything

Description of the Microsoft Exchange Server Best Practices Analyzer Tool

Also check the following link
Exchange 2003 SP2 is installed on a Member server or a domain controller?
How many total DC/GCs you have in your network?
Once you are able to manually start your Exchange services, go to Exchange System Manager, pull up the properties of your Exchange server object - Directory Access tab and see the information of all DCs and GCs, this Exchange server is communicating to.

Amit Aggarwal.
The messages means what they say - the server cannot connect to the domain controller.
It sounds like classic DNS issues.
Ensure that the ONLY DNS servers listed in the network configuration of the server are your domain controllers.
If you need to use external DNS servers to allow email to flow correctly, then configure forwarders on the DNS servers of the domain controller.
There should be no external DNS servers anywhere in the network configuration.


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