I have the following littering my App event logs as an Error.
Identical syntax show up in the Microsoft Exchange with DAG event log.
Would appreciate any input, can't find any identical posts with this error.
Two-node DAG.
-----------
MSExchange Front End HTTP Proxy
EventID 1003
[Oab] An internal server error occurred. The unhandled exception was: System.ArgumentNullException: Value cannot be null.
Parameter name: sourceObject
at Microsoft.Exchange.HttpProxy.AnchorMailbox..ctor(AnchorSource anchorSource, Object sourceObject, IRequestContext requestContext)
at Microsoft.Exchange.HttpProxy.UserADRawEntryAnchorMailbox..ctor(ADRawEntry adRawEntry, IRequestContext requestContext)
at Microsoft.Exchange.HttpProxy.OabProxyRequestHandler.ResolveAnchorMailbox()
at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.InternalBeginCalculateTargetBackEnd(AnchorMailbox& anchorMailbox)
at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.<BeginCalculateTargetBackEnd>b__27()
at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)