C # using Cdo.message to send mail, the success rate is extremely high

Using CDO;

Using System; Namespace ConsoleApp1 {class Program {static void Main (string[] args) {string from
            = "XXX";
            string to = "xxx";
            String userName = from;
            string password = "xxx";
            string title = "Test Message";
            String BODY = "Hello, how are you doing?";
            String server = "Smtp.126.com";  int port = 25;
                SSL 465 try {SendEmail (from, to, title, body, password, server, port, false);
            Console.WriteLine ("Send Complete");
            catch (Exception) {throw new Exception ();
        } console.readkey (); public static bool SendEmail (string from, string to, string title, string body, string password, string server
            , int port, BOOL SSL) {BOOL flag = false; try {#region MessaGE omsg = new message ();
                var conf = omsg.configuration; var ofields = conf.

                Fields; ofields["Http://schemas.microsoft.com/cdo/configuration/sendusing"].
                Value = Cdosendusing.cdosendusingport; ofields["Http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"].
                Value = Cdoprotocolsauthentication.cdobasic; if (SSL) {ofields["Http://schemas.microsoft.com/cdo/configuration/smtpusessl"].
                Value = true; } ofields["Http://schemas.microsoft.com/cdo/configuration/smtpserver"]. Value = server;//must be filled in, and the ofields["Http://schemas.microsoft.com/cdo/configuration/smtpserverport" can be used for real. Value = port;//Mailbox Port ofields["Http://schemas.microsoft.com/cdo/configuration/sendemailaddress"]. Value = from;//Sender mailbox ofields["Http://schemas.microsoft.com/cdo/configuration/sendusername"].   
           Value = from;//Mailbox Sender Name     ofields["Http://schemas.microsoft.com/cdo/configuration/sendpassword"].   Value = password;

                e-mail sender password, must be true ofields.update ();
                omsg.configuration = conf; oMsg.Subject = title;//Theme omsg.htmlbody = body;//message body oMsg.From = fr
                om;//Sender omsg.to = to;//receiver Omsg.send ();//Send flag = true;
                #endregion} catch (Exception) {flag = false;
            throw new Exception ();
        return flag;
 }
    }
}