C# outlook邮件对象密件抄送

有人知道我如何将电子邮件地址插入密件抄送，而不是“收件人”字段中的当前流程吗

//Create the session.
Outlook.Application application = new Outlook.Application();
//Create the session.                        
Outlook.MailItem mail = application.CreateItem(Outlook.OlItemType.olMailItem) as Outlook.MailItem;
//create the receipents object
Outlook.Recipients objOutlookRecip = mail.Recipients;

while (Recipients.Read())
{
    mail.Subject = Confirmations.GetString(2);
    mail.Body = Confirmations.GetString(4) + ("\r\n");        
    mail.Body = mail.Body + ("\r\n") + Confirmations.GetString(5) +     ("\r\n");
    mail.Body = mail.Body + ("\r\n") + Confirmations.GetString(6);
    mail.SentOnBehalfOfName = "user@email.com";
    mail.Recipients.Add(Recipients.GetString(8));
}

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检查

我试图立即接受，但在接受之前，您需要等待5-10分钟：）

Outlook.Recipient recipBcc =
        mail.Recipients.Add(Recipients.GetString(8));
recipBcc.Type = (int)Outlook.OlMailRecipientType.olBCC;