hi,everybody
 I use dotnet 2005 and c sharp to deliever a mail to a certain mail
address,but it failed with messages such as "invalid parameter,the server
response: decode failed". My codes is listed belowed:
      try
     {
        MailMessage mailObj = new MailMessage();
        mailObj.To.Add("wuhuanfa@hotmail.com");
        mailObj.From = new MailAddress(crespo1973@21cn.com);

       mailObj.Subject = "Óʼþ²âÊÔ";
       mailObj.Body = "ºÍѶÓʼþ½ÓÊÕ²âÊԳɹ¦! ";

       mailObj.IsBodyHtml = true;
       mailObj.Priority = MailPriority.High;
       mailObj.BodyEncoding = System.Text.Encoding.UTF8;

       System.Net.Mail.SmtpClient client = new
System.Net.Mail.SmtpClient("smtp.21cn.com");
       client.UseDefaultCredentials = false;

       client.Credentials = new
System.Net.NetworkCredential("crespo1973@21cn.com",
this.tb_mailUserPassword.Text);
       client.DeliveryMethod = SmtpDeliveryMethod.Network;

       client.Send(mailObj);

  }
  catch(Exception ex)
  {
     MessageBox.Show(ex.Message.ToString());
     return;
  }

 crespo1973@21cn.com is a correct account of mail.21cn.com,Could anyone
help me?

Crespo
2006-06-30