When trying to synchronize mail from Exchange 2013, to Exchange 2013 or to Exchange 2016 the following error is displayed in the MAgE (Migration Agent for Exchange) log.
Error Microsoft.Exchange.WebServices.Data.ServiceRequestException: The request failed. The remote server returned an error: (501) Not Implemented. | at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)
at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ValidateAndEmitRequest(IEwsHttpWebRequest& request)
at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.Execute()
at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder(FolderId folderId, PropertySet propertySet)
at Microsoft.Exchange.WebServices.Data.ExchangeService.BindToFolder[TFolder](FolderId folderId, PropertySet propertySet)
at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.ProductionExchangeService.FolderBind(WellKnownFolderName name, PropertySet propertySet)
at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.EwsSyncConnector.GetFolderIdDirect(WellKnownFolder folderName)
at Quest.MigrationManager.Exchange.MigrationConnectors.Ews.EwsSyncConnector.GetWellKnownFoldersIdsInternal(IEnumerable`1 folders)
at Quest.MigrationManager.Exchange.MigrationConnectors.GenericSyncConnector.FillWellKnownFoldersCache(IEnumerable`1 folders)
at Quest.MigrationManager.Exchange.MigrationConnectors.GenericSyncConnector.GetWellKnownFoldersIds(WellKnownFolder[] folders)
at Quest.MigrationManager.Exchange.MigrationConnectors.GenericSyncConnector.IsMailboxMatchingBroken()
at Quest.MigrationManager.Exchange.MigrationConnectors.GenericSyncConnector.StartSync(SyncDirection syncType)
at Quest.MigrationManager.Exchange.MigrationConnectors.GenericSyncConnector.ReSync(SyncDirection syncType)
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.<PerformSync>b__86_7()
at Dell.MigrationManagerForExchange.General.DotNet.ResultHandler.Execute(Action act, Action onSuccess, Action`1 onFailure, Boolean bSuppressException)
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.PerformSync()
at Quest.MigrationManager.Exchange.Agent.Jobs.DisBaseJob.RunJob()
[inner] System.Net.WebException: The remote server returned an error: (501) Not Implemented. | at System.Net.HttpWebRequest.GetResponse()
at Microsoft.Exchange.WebServices.Data.EwsHttpWebRequest.Microsoft.Exchange.WebServices.Data.IEwsHttpWebRequest.GetResponse()
at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)