在非默认Outlook2007帐户上的C#中创建MAPIFolder对象

using Outlook = Microsoft.Office.Interop.Outlook;

// 创建Outlook应用程序对象
Outlook.Application outlookApp = new Outlook.Application();

// 获取MAPI命名空间对象
Outlook.NameSpace outlookNamespace = outlookApp.GetNamespace("MAPI");

// 获取默认文件夹对象
Outlook.MAPIFolder defaultFolder = outlookNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);

// 获取所有文件夹的集合
Outlook.Folders allFolders = defaultFolder.Folders;

Outlook.MAPIFolder targetFolder = null;

foreach (Outlook.MAPIFolder folder in allFolders)
{
    if (folder.Name == "目标文件夹名称")
    {
        targetFolder = folder;
        break;
    }
}

if (targetFolder != null)
{
    // 在目标文件夹下创建子文件夹
    Outlook.MAPIFolder subFolder = targetFolder.Folders.Add("子文件夹名称");

    // 发送邮件到目标文件夹
    Outlook.MailItem mailItem = outlookApp.CreateItem(Outlook.OlItemType.olMailItem) as Outlook.MailItem;
    mailItem.Subject = "邮件主题";
    mailItem.Body = "邮件内容";
    mailItem.Save();
    mailItem.Move(targetFolder);
}