C# Microsoft.Office.Interop.Outlook正在获取通讯组的所有者

using Outlook = Microsoft.Office.Interop.Outlook;
...
Outlook.Application outlookApp = new Outlook.Application();

Outlook.NameSpace nameSpace = outlookApp.GetNamespace("MAPI");
Outlook.MAPIFolder contactsFolder = nameSpace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);

foreach (Outlook.ContactItem contactItem in contactsFolder.Items)
{
    if (contactItem.Class == Outlook.OlObjectClass.olDistributionList)
    {
        Outlook.DistListItem distListItem = contactItem.GetContactDistributionList();
        string owner = distListItem.Owner.Name;
        Console.WriteLine("通讯组的所有者: " + owner);
    }
}