VS2005 發郵件源碼

System.Net.Mail.MailMessage mailobj = new System.Net.Mail.MailMessage();
        mailobj.From = new MailAddress("***","***");
        mailobj.To.Add("***");
        mailobj.Subject = "test";
        mailobj.Body = "test";
        mailobj.IsBodyHtml = true;
        mailobj.BodyEncoding = System.Text.UnicodeEncoding.UTF8;
        mailobj.Priority = MailPriority.High;

        SmtpClient smtp = new SmtpClient("smtp.163.com");
        smtp.UseDefaultCredentials = false;
        smtp.Credentials = new NetworkCredential("***", "***");
        smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
        smtp.Send(mailobj);