SmtpException.StatusCode Proprietà

Definizione

Spazio dei nomi:

System.Net.Mail

Assembly:

System.Net.Mail.dll

Origine:

SmtpException.cs

Ottiene il codice di stato restituito da un server SMTP quando viene trasmesso un messaggio di posta elettronica.

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

Valore della proprietà

SmtpStatusCode

Enumerazione SmtpStatusCode che indica l’errore generato.

Esempio

Nell'esempio di codice seguente viene visualizzato il valore di questa proprietà.

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());
    }
}