the servicepointmanager does not support proxies with the https scheme

the servicepointmanager does not support proxies with the https scheme from Pastebin

    
        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.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:

  
    
    4002
    2
    4
    0x80000000000000
    
    2319992
    Application
    NysMail04.nysmith.com
    
  
  
    25244
    ProxyWebRequest CrossSite from S-1-5-21-1968137014-435888768-607550701-16052 to https://nysmail03.nysmith.com:444/EWS/Exchange.asmx
    NetworkCredentials
    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