MSExchange 4002

Log Name:      Application
Source:        MSExchange Availability
Date:          12/14/2016 3:11:36 PM
Event ID:      4002
Task Category: Availability Service
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NysMail04.nysmith.com
Description:
Process 25244: ProxyWebRequest CrossSite from S-1-5-21-1968137014-435888768-607550701-16052 to https://nysmail03.nysmith.com:444/EWS/Exchange.asmx failed. Caller SIDs: NetworkCredentials. The exception returned is Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequestProcessingException: Proxy web request failed.  ---> System.NotSupportedException: The ServicePointManager does not support proxies with the https scheme.
   at System.Net.ServicePointManager.FindServicePointHelper(Uri address, Boolean isProxyServicePoint)
   at System.Net.HttpWebRequest.FindServicePoint(Boolean forceFind)
   at System.Net.HttpWebRequest.set_Proxy(IWebProxy value)
   at Microsoft.Exchange.Data.ApplicationLogic.UserPhotos.HttpPhotoRequestBuilder.Build(Uri ewsUri, PhotoRequest request, IPhotoRequestOutboundWebProxyProvider proxyProvider, Boolean traceRequest)
   at Microsoft.Exchange.InfoWorker.Common.Availability.Proxy.RestService.BeginGetUserPhoto(PhotoRequest request, PhotosConfiguration configuration, AsyncCallback callback, Object asyncState)
   at Microsoft.Exchange.InfoWorker.Common.UserPhotos.UserPhotoApplication.BeginProxyWebRequest(IService service, MailboxData[] mailboxArray, AsyncCallback callback, Object asyncState)
   at Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequest.BeginInvoke()
   at Microsoft.Exchange.InfoWorker.Common.Availability.AsyncWebRequest.<BeginInvokeInternal>b__5()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(Action tryDelegate, Func`2 filterDelegate, Action`1 catchDelegate)
   --- End of inner exception stack trace ---
. Name of the server where exception originated: NYSMAIL04. LID: 39436. 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.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Availability" />
    <EventID Qualifiers="49156">4002</EventID>
    <Level>2</Level>
    <Task>4</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2016-12-14T20:11:36.000000000Z" />
    <EventRecordID>2319992</EventRecordID>
    <Channel>Application</Channel>
    <Computer>NysMail04.nysmith.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>25244</Data>
    <Data>ProxyWebRequest CrossSite from S-1-5-21-1968137014-435888768-607550701-16052 to https://nysmail03.nysmith.com:444/EWS/Exchange.asmx</Data>
    <Data>NetworkCredentials</Data>
    <Data>Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequestProcessingException: Proxy web request failed.  ---&gt; System.NotSupportedException: The ServicePointManager does not support proxies with the https scheme.
   at System.Net.ServicePointManager.FindServicePointHelper(Uri address, Boolean isProxyServicePoint)
   at System.Net.HttpWebRequest.FindServicePoint(Boolean forceFind)
   at System.Net.HttpWebRequest.set_Proxy(IWebProxy value)
   at Microsoft.Exchange.Data.ApplicationLogic.UserPhotos.HttpPhotoRequestBuilder.Build(Uri ewsUri, PhotoRequest request, IPhotoRequestOutboundWebProxyProvider proxyProvider, Boolean traceRequest)
   at Microsoft.Exchange.InfoWorker.Common.Availability.Proxy.RestService.BeginGetUserPhoto(PhotoRequest request, PhotosConfiguration configuration, AsyncCallback callback, Object asyncState)
   at Microsoft.Exchange.InfoWorker.Common.UserPhotos.UserPhotoApplication.BeginProxyWebRequest(IService service, MailboxData[] mailboxArray, AsyncCallback callback, Object asyncState)
   at Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequest.BeginInvoke()
   at Microsoft.Exchange.InfoWorker.Common.Availability.AsyncWebRequest.&lt;BeginInvokeInternal&gt;b__5()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(Action tryDelegate, Func`2 filterDelegate, Action`1 catchDelegate)
   --- End of inner exception stack trace ---
. Name of the server where exception originated: NYSMAIL04. LID: 39436</Data>
  </EventData>
</Event>