SmtpException.StatusCode SmtpException.StatusCode SmtpException.StatusCode SmtpException.StatusCode Property

定義

取得在傳送電子郵件訊息時,SMTP 伺服器所傳回的狀態碼。Gets the status code returned by an SMTP server when an email message is transmitted.

public:
 property System::Net::Mail::SmtpStatusCode StatusCode { System::Net::Mail::SmtpStatusCode get(); void set(System::Net::Mail::SmtpStatusCode value); };
public System.Net.Mail.SmtpStatusCode StatusCode { get; set; }
member this.StatusCode : System.Net.Mail.SmtpStatusCode with get, set
Public Property StatusCode As SmtpStatusCode

屬性值

SmtpStatusCode 值,指出發生的錯誤。An SmtpStatusCode value that indicates the error that occurred.

範例

下列程式碼範例會顯示這個屬性的值。The following code example displays the value of this property.

static void RetryIfBusy( String^ server )
{
   MailAddress^ from = gcnew MailAddress( L"ben@contoso.com" );
   MailAddress^ to = gcnew MailAddress( L"jane@contoso.com" );
   MailMessage^ message = gcnew MailMessage( from,to );
   
   // message.Subject = "Using the SmtpClient class.";
   message->Subject = L"Using the SmtpClient class.";
   message->Body = L"Using this feature, you can send an email message from an application very easily.";
   
   // Add a carbon copy recipient.
   MailAddress^ copy = gcnew MailAddress( L"Notifications@contoso.com" );
   message->CC->Add( copy );
   SmtpClient^ client = gcnew SmtpClient( server );
   
   // Include credentials if the server requires them.
   client->Credentials = dynamic_cast<ICredentialsByHost^>(CredentialCache::DefaultNetworkCredentials);
   Console::WriteLine( L"Sending an email message to {0} using the SMTP host {1}.", to->Address, client->Host );
   try
   {
      client->Send( message );
   }
   catch ( SmtpFailedRecipientsException^ ex ) 
   {
      for ( int i = 0; i < ex->InnerExceptions->Length; i++ )
      {
         SmtpStatusCode status = ex->InnerExceptions[ i ]->StatusCode;
         if ( status == SmtpStatusCode::MailboxBusy || status == SmtpStatusCode::MailboxUnavailable )
         {
            Console::WriteLine( L"Delivery failed - retrying in 5 seconds." );
            System::Threading::Thread::Sleep( 5000 );
            client->Send( message );
         }
         else
         {
            Console::WriteLine( L"Failed to deliver message to {0}", ex->InnerExceptions[ i ] );
         }

      }
   }
   catch ( Exception^ ex )
   {
       Console::WriteLine(L"Exception caught in RetryIfBusy(): {0}", 
                     ex->ToString() );
   }
   finally
   {
      client->~SmtpClient();
   }
}


public static void RetryIfBusy(string server)
{
	MailAddress from = new MailAddress("ben@contoso.com");
	MailAddress to = new MailAddress("jane@contoso.com");
	MailMessage message = new MailMessage(from, to);
	// message.Subject = "Using the SmtpClient class.";
	message.Subject = "Using the SmtpClient class.";
	message.Body = @"Using this feature, you can send an email message from an application very easily.";
	// Add a carbon copy recipient.
	MailAddress copy = new MailAddress("Notifications@contoso.com");
	message.CC.Add(copy);
	SmtpClient client = new SmtpClient(server);
	// Include credentials if the server requires them.
	client.Credentials = (ICredentialsByHost)CredentialCache.DefaultNetworkCredentials;
	Console.WriteLine("Sending an email message to {0} using the SMTP host {1}.",
		 to.Address, client.Host);
	try
	{
		client.Send(message);
	}
	catch (SmtpFailedRecipientsException ex)
	{
		for (int i = 0; i < ex.InnerExceptions.Length; i++)
		{
			SmtpStatusCode status = ex.InnerExceptions[i].StatusCode;
			if (status == SmtpStatusCode.MailboxBusy ||
				status == SmtpStatusCode.MailboxUnavailable)
			{
				Console.WriteLine("Delivery failed - retrying in 5 seconds.");
				System.Threading.Thread.Sleep(5000);
				client.Send(message);
			}
			else
			{
				Console.WriteLine("Failed to deliver message to {0}", 
				    ex.InnerExceptions[i].FailedRecipient);
			}
		}
	}
          catch (Exception ex)
          {
              Console.WriteLine("Exception caught in RetryIfBusy(): {0}", 
                      ex.ToString() );
          }
      }

適用於