Need help setting up a C++/CLI Imap folder?

Question

IMAP

Hello everyone, I'm working on an email client. I share it in VS2019 C ++ / CLI in fact everything is done (authorization, receiving letters, reading, deleting, sending), but everything works so far through the Inbox folder. The project is made using the notorious chilkat library. The matter is that I cannot come into other folders in any way, on similarity "Outgoing" "Spam" and.
etc. used different names (Sent, INBOX.Sent, INBOX/Sent) and still does not enter, who can tell me what the problem is?

Authorization code:

// Установка сертификата
  imap.put_Ssl(true);
  imap.put_Port(993);

  // Подключение по imap 
  success = imap.Connect(imapC);

  // Авторизация
  success = imap.Login(login, password);
  if (success != true) {
    textBox3->Text += stat + "Ошибка логина или пароля" + "\r\n";
    textBox3->Text += "Проверьте правильность узла IMAP" + "\r\n";
    return;
  }
  else {
    textBox3->Text += stat + "Вы авторизовались" + "\r\n";
  }

  // Выбор imap папки с сообщениями
  success = imap.SelectMailbox("Inbox");
  if (success != true) {
    textBox3->Text += stat + "Ошибка выбора папки" + "\r\n";
    return;
  }
  else {
    textBox3->Text += stat + "Выбор папки по умолчанию" + "\r\n";
  }

Answer 1

Issue resolved

// Выбор imap папки с сообщениями
      // Yandex
      success = imap.SelectMailbox("Отправленные"); 
      if (success != true) {
        // Gmail.com - Ru
        success = imap.SelectMailbox("[Gmail]/Отправленные");
        if (success != true)
        {
          // Gmail.com - Eng
          success = imap.SelectMailbox("[Gmail]/Sent");
          if (success != true)
          {
            // Mail.ru
            success = imap.SelectMailbox("Sent");
            if (success != true)
            {
              this->Enabled = true;
              return;
            }
          }
        }
      }