Errors during mail synchronization:
Error Microsoft.Exchange.WebServices.Data.ServiceRemoteException: An internal server error occurred. The operation failed.
at Dell.MigrationManagerForExchange.General.Autodiscover.Autodiscover.GetUserSettings(String emailAddress, NetworkCredential creds, Uri& autodiscoverUrl, Boolean enableScpLookup, Nullable`1& isExternal, AutodiscoverUserSetting[] userSettingNames)
at Dell.MigrationManagerForExchange.General.Autodiscover.Autodiscover.GetEwsUrl(String emailAddress, NetworkCredential creds, Uri& autodiscoverUrl, Boolean enableScpLookup)
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.DiscoverUrl()
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.get_Url()
at Dell.MigrationManagerForExchange.General.Ews.EwsSessionCreator.GetExchangeService()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.get_Exs()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.ConnectInternal()
at Quest.MigrationManager.Exchange.MigrationConnectors.EwsSyncConnector.Connect()
Error Autodiscover request failed for user USERNAME@DOMAIN.COM. | Microsoft.Exchange.WebServices.Data.ServiceRemoteException: An internal server error occurred. The operation failed.