Hi guys! I have situation here, i installed exchange 2007 sp1, CAS/HUB in SRV2 and MB in SRV1, SRV2 is OK but the SRV1 MSexchangeSA service failed to start after the installation. Event IDs such as 1004, 4001, 1005 always appeared and done its specific resolution. Can anybody help me on this? And what seems to be the cause of this problem? I hope i can get a reply the soonest possible time. Thank you. regards, LRM

It's probably best if you ramp up the diagnostics logging for the system attendant and actually post the contents of the events here.

Hi!Thanks for the reply, hresthe event logs: Event Type: Error Event Source: MSExchange System Attendant Mailbox Event Category: General Event ID: 4001 Date: 11/21/2008 Time: 9:58:42 AM User: N/A Computer: SRV1 Description: A transient failure has occurred. The problem may resolve itself in awhile. The service will retry in 56 seconds. Diagnostic information: Could not find any available Domain Controller. Microsoft.Exchange.Data.Directory.ADTransientException: Could not find any available Domain Controller. at Microsoft.Exchange.Data.Directory.ConnectionPoolManager.GetConnection(ConnectionType connectionType, ADObjectId domain, String serverName, Int32 port, NetworkCredential credential) at Microsoft.Exchange.Data.Directory.ConnectionPoolManager.GetConnection(ConnectionType connectionType) at Microsoft.Exchange.Data.Directory.ADSession.GetConnection(String preferredServer, Boolean isWriteOperation, Boolean isNotifyOperation, ADObjectId& rootId) at Microsoft.Exchange.Data.Directory.ADSession.GetReadConnection(String preferredServer, ADObjectId& rootId) at Microsoft.Exchange.Data.Directory.ADSession.Find(ADObjectId rootId, String optionalBaseDN, ADObjectId readId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCreator, CreateObjectsDelegate arrayCreator) at Microsoft.Exchange.Data.Directory.ADSession.Find(ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor) at Microsoft.Exchange.Data.Directory.ADSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties) at Microsoft.Exchange.Data.Directory.SystemConfiguration.ADSystemConfigurationSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults) at Microsoft.Exchange.Data.Directory.SystemConfiguration.ADSystemConfigurationSession.FindServerByFqdn(String serverFqdn) at Microsoft.Exchange.Data.Directory.SystemConfiguration.ADSystemConfigurationSession.FindLocalServer() at Microsoft.Exchange.Servicelets.SystemAttendantMailbox.Servicelet.Work() For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. +++++++++++++++++++++++++++++++++++ Event Type: Error Event Source: MSExchangeSA Event Category: General Event ID: 1005 Date: 11/21/2008 Time: 9:58:15 AM User: N/A Computer: SRV1 Description: Unexpected error The server is not operational. Facility: Win32 ID no: 8007203a Microsoft Exchange System Attendant occurred. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. ++++++++++++++++++++++++++++++++++++++++++++++++ Event Type: Warning Event Source: MSExchange ADAccess Event Category: Topology Event ID: 2105 Date: 11/21/2008 Time: 9:56:40 AM User: N/A Computer: SRV1 Description: Process STORE.EXE (PID=1884). Exchange Active Directory Provider failed to obtain DNS records for domain MYDOMAIN.COM DNS Priority and Weight for the Domain Controllers in this domain will be set to the default values 0 (priority) and 100 (weight). For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.Thanks again,LRM

Two things stand out from the text you've posted: "Could not find any available Domain Controller" and "Exchange Active Directory Provider failed to obtain DNS records for domain MYDOMAIN.COM" You could have a DNS problem here which is preventing the services from contacting a DC. I'd check your DNS configuration first.

Hi Neil!Many Thanks for the replies! Yeah, you are right! This is DNS issue, i found it out that the DNS dynamic updates was not set to Enabled.To elaborate some work around, below is what i've done:1. Run Netdiag and Dcdiag from SRV1 to DC (All passed)2. Run Netdiag and Dcdiag from MYDOMAIN (Dcdiag failed)3. Remove all the external DNS (ISP) all dns should be internal (i have 2 DC)4. Configure the dynamic updates of your DNS please refer to this article as your guide http://support.microsoft.com/default.aspx/kb/816592. My client uses WINS before and the DNS was disabled.5. Disabled the checksum offloading in my NICs6.Restart the serverNow i'm starting to configure the mail routing, am sure another challenges lies ahead!Regards,LRM