邮件发送465端口

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using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Threading; using System.Text;   public partial class _Default : System.Web.UI.Page {     protected void Page_Load(object sender, EventArgs e)     {         SendThreadBy465("******@qq.com", "测试465", "测试465");     }       /// <summary>         /// 邮件服务器地址         /// </summary>         private static string MailServer = "mail.chnenergy.com.cn";         /// <summary>         /// 用户名         /// </summary>         private static string MailUserName = "******@chnenergy.com.cn";         /// <summary>         /// 密码         /// </summary>         private static string MailPassword = "******";         /// <summary>         /// 名称         /// </summary>         private static string MailName = "测试";         public static void SendThreadBy465(string to, string title, string body)         {             new Thread(new ThreadStart(delegate ()             {                 try                 {                     System.Web.Mail.MailMessage mmsg = new System.Web.Mail.MailMessage();                     //验证                      mmsg.Subject = title.Trim(); ;// "zhuti1";//邮件主题                        mmsg.BodyFormat = System.Web.Mail.MailFormat.Html;                     mmsg.Body = body;// "wqerwerwerwer";//邮件正文                     mmsg.BodyEncoding = Encoding.UTF8;//正文编码                     mmsg.Priority = System.Web.Mail.MailPriority.High;//优先级                        mmsg.From = MailUserName;//发件者邮箱地址                     mmsg.To = to;//收件人收箱地址                     mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");                     //登陆名                      mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", MailUserName);                     //登陆密码                      mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", MailPassword);                     mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 465);//端口                     mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true");                                           System.Web.Mail.SmtpMail.SmtpServer = MailServer;                     System.Web.Mail.SmtpMail.Send(mmsg);                 }                 catch (Exception ex)                 {                     Console.WriteLine(ex.ToString());                 }                })).Start();         } }