Exchange 2010/2013/2016 Cannot find server in AD for database…

Symptom:

Exchange Databases are not visible under database, get-mailboxdatabase or when creating new user.

erorr message in event log :

Server für Datenbank MailboxDB (077f8b6f-3cf4-49af-8241-b90021c115c4) wurde nicht gefunden.

<Event xmlns=”http://schemas.microsoft.com/win/2004/08/events/event”&gt;
– <System>
<Provider Name=”MSExchangeApplicationLogic” />
<EventID Qualifiers=”49156″>3055</EventID>
<Level>2</Level>
<Task>3</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime=”2015-10-23T08:18:50.000000000Z” />
<EventRecordID>3022407</EventRecordID>
<Channel>Application</Channel>
<Computer>computeraccountl</Computer>
<Security />
</System>
– <EventData>
<Data>ProcessOrgExtensions</Data>
<Data>Microsoft.Exchange.Data.Storage.UnableToFindServerForDatabaseException: Der aktive Server für Datenbank mailboxdatabse (077f8b6f-3cf4-49af-8241-b90021c115c4) wurde nicht gefunden. bei Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManagerImplementation.GetServerInformationForDatabaseInternal(IADDatabase database, DatabaseLocationInfo minimalLocationInfo, IFindMiniServer findMiniServer) bei Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.GetServerInformationForDatabase(Guid databaseId, IADDatabase database, DatabaseLocationInfo dbLocationInfo, GetServerForDatabaseFlags gsfdFlags, IPerformanceDataLogger perfLogger) bei Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.GetServerForDatabase(Guid databaseId, GetServerForDatabaseFlags gsfdFlags, IPerformanceDataLogger perfLogger) bei Microsoft.Exchange.Data.Storage.DatabaseLocationProvider.GetLocationInfo(Guid mdbGuid, Boolean bypassCache, Boolean ignoreSiteBoundary) bei Microsoft.Exchange.Data.Storage.ExchangePrincipalFactory.InternalFromADUser(IGenericADUser user, ADObjectId mdb, DatabaseLocationInfo databaseLocationInfo, RemotingOptions remotingOptions, Boolean asArchive, Boolean isContentIndexing, Nullable`1 aggregatedMailboxGuid) bei Microsoft.Exchange.Data.Storage.ExchangePrincipalFactory.FromADUser(ADSessionSettings adSettings, IGenericADUser user, RemotingOptions remotingOptions, String domainController) bei Microsoft.Exchange.Data.Storage.ExchangePrincipalFactory.FromADUser(ADUser user, String domainController) bei Microsoft.Exchange.Data.ApplicationLogic.Extension.OrgExtensionTable.CreateExchangeService(String domain, RequestData requestData)</Data>
</EventData>
</Event>

Cause:

Wrong Server set in msExchMasterServer and msExchOwningServer are pointing to non-existing exchange server

Solution:

Recreated all System mailboxes.Old ones are pointing to non existing server.

Set correct server on msExchMasterServer and msExchOwningServer for affected  mailboxdatabase in ADSI EDIT.

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