#region 邮件发送         /// <summary>      /// 发送邮件支持HTML格式 先引用System.Net.Mail;      /// </summary>      /// <param name="MailFrom">发送人Email 如demo@126.com</param>      /// <param name="MailServer">邮件服务器 如mail.126.com</param>      /// <param name="MailUserName">登陆用户名 如demo@126.com</param>      /// <param name="MailPassword">登陆密码 如123456</param>      /// <param name="mailto">收件人邮箱</param>      /// <param name="title">邮件标题</param>      /// <param name="msg">邮件正文</param>      /// <returns>成功 true; 失败 false</returns>      public static bool SendSmtpEmail(string MailFrom, string MailServer, string MailUserName, string MailPassword, string mailto, string title, string msg)      {          var client = new SmtpClient();          client.Host = MailServer;          client.UseDefaultCredentials = false;          client.Credentials = new System.Net.NetworkCredential(MailUserName, MailPassword);          client.DeliveryMethod = SmtpDeliveryMethod.Network;          System.Net.Mail.MailMessage message = new MailMessage(MailFrom, mailto);          message.Subject = title;          message.Body = msg;          message.SubjectEncoding = System.Text.Encoding.UTF8;          message.BodyEncoding = System.Text.Encoding.UTF8;          message.IsBodyHtml = true;          message.Priority = MailPriority.High;          message.IsBodyHtml = true;          try          {              client.Send(message);              return true;          }          catch          {              return false;          }      }      #endregion