SmtpClient发送邮件(用户找回密码)

/// <summary>
   /// 利用.Net自带类(SmtpClient) 发送邮件
   /// </summary>
   /// <param name="stmpserver">邮件服务器</param>
   /// <param name="username">用户名(邮箱名称)</param>
   /// <param name="pwd">密码</param>
   /// <param name="strfrom">发件人</param>
   /// <param name="strto">收件人</param>
   /// <param name="subject">主题</param>
   /// <param name="body">内容</param>
   /// <param name="Mulitaddress">发送多人 收件人的邮箱地址以逗号隔开</param>
  /// <param name="attachmentName">发送的附件名称 没有附件则为null or ""</param>
   public static void SendEmailToUser(string stmpserver, string  Mulitaddress, string attachmentName,  string username,string pwd,string strfrom,string strto,string subject,string body)
   {
       SmtpClient smtp = new SmtpClient();
       //发送邮件的方式
       smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
       //指定邮件服务器
       smtp.Host = stmpserver;

       smtp.Port = 587;//Gmail QQ stmp ssl加密使用的端口

       smtp.EnableSsl = true;//经过ssl加密
       //验证发件人的身份 用户名(邮件地址和密码)
       smtp.Credentials = new System.Net.NetworkCredential(username, pwd);

       //初始化信息(来自 接收人)
       MailMessage _mailmessage = new MailMessage(strfrom, strto);

       //发送多个人 接收人邮件地址以,隔开

        if (!string.IsNullOrEmpty(Mulitaddress))
        {
               //添加多个收件人 群发
           _mailmessage.Bcc.Add(Mulitaddress);
       }


       //如果发送失败，SMTP 服务器将发送 失败邮件通知
       _mailmessage.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
       //优先级
       _mailmessage.Priority = MailPriority.High;
       //发送主题
       _mailmessage.Subject = subject;
       //有附件则添加附件
       if (!string.IsNullOrEmpty(attachmentName))
       {
           System.Net.Mail.Attachment attch = new System.Net.Mail.Attachment(attachmentName);
           _mailmessage.Attachments.Add(attch);
       }
       //邮件主题编码
       _mailmessage.SubjectEncoding = System.Text.Encoding.UTF8;
       //指定发送的格式 (Html)
       _mailmessage.IsBodyHtml = true;
       //指定发送邮件的编码
       _mailmessage.BodyEncoding = System.Text.Encoding.UTF8;
       //指定邮件内容
       _mailmessage.Body = body;

       //发送邮件
       try
       {
           smtp.Send(_mailmessage);
       }
       catch(Exception ex) {
           throw ex;
       }

   }

//邮件服务器
              string smtpserver = DBUtility.GetConfigVariable.GetConfigValue("smtpserver");
              //发件人的邮箱名称
              string emailuserName = DBUtility.GetConfigVariable.GetConfigValue("emailuserName");
              //发件人的邮箱密码
              string emailuserpwd = DBUtility.GetConfigVariable.GetConfigValue("emailuserpwd");
              //邮箱地址
              string emailfrom = DBUtility.GetConfigVariable.GetConfigValue("emailfrom");
              //收件人的邮箱地址
              string toUser =model.Email;
              //附件
              //string attachpath = Server.MapPath("pic/20100119020119.gif");

              //邮件内容
               string bodys = "亲爱的IT数码商城会员：" + model.Username + ":<br />您好!恭喜你己经找回密码";
              bodys+="你的密码是<b style="color;red" mce_style="color;red">"+model.Password+"</b>请妥善保管好你的密码!<br/>";
              bodys+="你可以通过http://www.ITWeb.cn/UserLogin.aspx/登录你的帐户!尽情享受IT数码城带给你的的乐趣吧!<br/>";
              bodys += "你也可以通过:http://www.ITWeb.cn/UpdateUserPwd.aspx/ 修改的你的密码!<br/>";
              bodys += "如果有任何疑问请联系管理员:QQ:664618843 Tel:13456946640<br/>";
              bodys += "请勿回复此邮件 谢谢合作!";
              //发送邮件
              DBUtility.SendEmail.SendEmailToUser(smtpserver, null, null, emailuserName, emailuserpwd, "luokuan2010@gmail.com", toUser, "IT数码城用户找回密码", bodys);