Hello!
Every 20 minutes i'll see the following error on my HUB/CAS servers:
Process Microsoft.Exchange.InfoWorker.Common.Delayed`1[System.String]: Request from <Mailbox server sid> failed security checks.
On that specific server i can see the following:
Process 3732: ProxyWebRequest CrossSite from S-1-1-0 to
/EWS/Exchange.asmx">https://<CAS-server>/EWS/Exchange.asmx
Mailbox list = <Random users>, Parameters: windowStart = 1/1/2013 12:00:00 AM, windowEnd = 3/1/2013 12:00:00 AM, MergedFBInterval = 30, RequestedView = FreeBusy
. ---> System.Web.Services.Protocols.SoapException: The authenticated user doesn't have sufficient privileges to issue this request.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.EndInvoke(IAsyncResult asyncResult)
at Microsoft.Exchange.InfoWorker.Common.Availability.Proxy.Service.EndGetUserAvailability(IAsyncResult asyncResult)
at Microsoft.Exchange.InfoWorker.Common.Availability.FreeBusyApplication.EndProxyWebRequest(ProxyWebRequest proxyWebRequest, QueryList queryList, Service service, IAsyncResult asyncResult)
at Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequest.EndInvoke(IAsyncResult asyncResult)
at Microsoft.Exchange.InfoWorker.Common.Availability.AsyncWebRequest.EndInvokeWithErrorHandling()
--- End of inner exception stack trace ---
. Name of the server where exception originated: <Mailbox server>. Make sure that the Active Directory site/forest that contain the user's mailbox has at least one local Exchange 2010 server running the Availability service. Turn up logging for the Availability
service and test basic network connectivity.
Test-OutlookWebServices does not show any errors.