Hi All, My problem is; After I installed Exchange Server 2007 SP3 , when I sending mail , that's gives me error. Here is my error message. Microsoft Exchange couldn't read the configuration from the Active Directory directory service because of error: Failed to load config due to exception: Microsoft.Exchange.Data.Directory.ADTransientException: Active Directory operation failed on server.techsoft.local. The supplied credential for 'MAILSERVER\Administrator' on Bind operation is invalid. Error Code: 0x31. ---> Microsoft.Exchange.Data.Directory.ADInvalidCredentialException: Active Directory operation failed on server.techsoft.local. The supplied credential for 'MAILSERVER\Administrator' on Bind operation is invalid. Error Code: 0x31. ---> System.DirectoryServices.Protocols.LdapException: The supplied credential is invalid. at System.DirectoryServices.Protocols.LdapConnection.BindHelper(NetworkCredential newCredential, Boolean needSetCredential) at Microsoft.Exchange.Data.Directory.PooledLdapConnection.BindWithRetry(Int32 maxRetries) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.PooledLdapConnection.BindWithRetry(Int32 maxRetries) at Microsoft.Exchange.Data.Directory.LdapConnectionPool.CreateOneTimeConnection(NetworkCredential networkCredential, ADServerInfo serverInfo) at Microsoft.Exchange.Data.Directory.TopologyProvider.PopulateConfigNamingContexts() at Microsoft.Exchange.Data.Directory.TopologyProvider.GetConfigurationNamingContext() 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.Transport.LocalServerConfiguration.<>c__DisplayClass2.<TryLoadLocalServer>b__0() at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.RunADOperation(ADOperation adOperation, Int32 retryCount) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.RunADOperation(ADOperation adOperation, Int32 retryCount) at Microsoft.Exchange.Data.Directory.ADNotificationAdapter.TryRunADOperation(ADOperation adOperation, Int32 retryCount). For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Thanks in advance,

On Sat, 22 Jan 2011 19:45:14 +0000, systemselo wrote: > > >Hi All, > >My problem is; After I installed Exchange Server 2007 SP3 , when I sending mail , that's gives me error. > >Here is my error message. What account is being used by the transport service? It should be: NT AUTHORITY\NetworkService --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Hi Rich , First of all ,Thanks for your answer. As you said , Exchange transport service have NT AUTHORITY\NetworkService account.But , it's not still working. if the domain administrator , service working.I don't understand really problem.

On Sun, 23 Jan 2011 11:10:40 +0000, systemselo wrote: >First of all ,Thanks for your answer. As you said , Exchange transport service have NT AUTHORITY\NetworkService account.But , it's not still working. if the domain administrator , service working.I don't understand really problem. It isn't the domain administrator account that's being used, it's the local 'MAILSERVER\Administrator' (unless MAILSERVER is the name of your AD domain). Have you disabled IPv6 on this machine? If so, enable it. Have you run dcdiag from this machine to see if there are problems with access to the directory? --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Hi Rich , First of all ,Thanks for your answer. As you said , Exchange transport service have NT AUTHORITY\NetworkService account.But , it's not still working. if the domain administrator , service working.I don't understand really problem. Do you mean that if you change the log on account of transport service to the domain administrator, the transport service works and you can send the message without problem? Have you tried restarting exchange server? Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT