我应该采取什么方法来处理非泛型异常?

我编写的代码中，出于防御目的，我将try-catch中的所有方法体封闭在catch块中捕获通用Exception。

现在我已经编写了接受Exception类型对象的方法，然后记录基本异常类型，异常消息和堆栈跟踪。然后迭代地遍历内部异常，并为它们打印相同的异常。所以简而言之，无论在任何地方发生什么异常，我都可以获得日志中所有嵌套异常的基本类型，消息和堆栈跟踪。

我已经捕获了所有地方的非泛型异常，Visual Studio给了我异常未捕获的警告。但是这些人的数量非常少。

然而，它们是在测试运行中调用方法的实例:

ExchangeService.LoadPropertiesForItems ()

我得到了以下堆栈跟踪

2014-03-18 16:59:09.3816 | Error | The request failed. Unable to connect to the remote server 
                  Immediate Stack Trace 
===================================================================================
Microsoft.Exchange.WebServices.Data.ServiceRequestException : The request failed. Unable to connect to the remote server
   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.FindItems[TItem](IEnumerable`1 parentFolderIds, SearchFilter searchFilter, String queryString, ViewBase view, Grouping groupBy, ServiceErrorHandling errorHandlingMode)
   at Microsoft.Exchange.WebServices.Data.ExchangeService.FindItems(FolderId parentFolderId, SearchFilter searchFilter, ViewBase view)
   at Microsoft.Exchange.WebServices.Data.ExchangeService.FindItems(WellKnownFolderName parentFolderName, ViewBase view)
   at com.cos.method() in c:'SW'Class.cs:line 268

     Inner Exception 1 : Stack Trace
-----------------------------------------------------------------------------
Unable to connect to the remote server
   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)

     Inner Exception 2 : Stack Trace
-----------------------------------------------------------------------------
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 10.40.7.29:443
   at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

此方法的MSDN页没有指定它可以抛出ServiceRequestException或Visual Studio显示任何警告。

而且，我公司的自动代码分析工具为这种泛型异常捕获块生成了大量的警告。

我应该如何处理这种异常的发生?

try{ 
//Do Your Work
}
catch(ServiceRequestException srex)
{
//Handle this Specific Exception Type
}
catch(StackOverflowException soex)
{
//Handle this Specific Exception Type
}
catch(SomeOtherSpecificException sose)
{
//Handle this Specific Exception Type
}
catch(Exception ex)
{
//Handle an Unexpected Exception
}