发送电子邮件的方法

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/// 发送电子邮件的方法
    /// </summary>
    /// <param name="currentUser"></param>
    protected void SendEmailToUser(UserInfo currentUser)
    {

if (currentUser != null)
{

            string s_from = "wsk_ynitj@sina.com";
            string pwd = "******";
            string s_to = currentUser.uEmail;

string s_body = "G-Shop欢迎您注册成功，请点击此链,激活账号:<a href='http://localhost:11192/Web/ActivateAccount.aspx'></a>";
s_body = s_body.Replace("/r/n", "<br/>");

            //s_body = s_body.Replace("/n", "<br/>");
            //s_body = s_body.Replace(" ", " ");
            // s_body = Server.HtmlEncode(s_body);
            int i = s_from.IndexOf("@");
            string username = s_from.Substring(0, i);

            //构建MailMessage对象
            MailAddress from = new MailAddress(s_from);
            MailAddress to = new MailAddress(s_to);
            MailMessage mailobj = new MailMessage(from, to);
            mailobj.IsBodyHtml = true;
            //完善MailMessage对象
            mailobj.Subject = currentUser.uNick + "激活账号";
            //mailobj.IsBodyHtml = true;
            mailobj.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");
            mailobj.Priority = MailPriority.High;
            mailobj.Body = s_body;

            //添加附件
            //if (FileUpload1.PostedFile.ContentLength > 0)
            //    mailobj.Attachments.Add(new Attachment(FileUpload1.PostedFile.FileName));
            //构建SmtpClient对象
            SmtpClient smtp = new SmtpClient("smtp.sina.com");// smtp.Host = "smtp.163.com";
            smtp.UseDefaultCredentials = false;
            smtp.Credentials = new NetworkCredential(username, pwd);
            smtp.DeliveryMethod = SmtpDeliveryMethod.Network;

            //try
            //{
            smtp.Send(mailobj);
            // this.lblReturnMsg.Text = "发送成功,请及时查收";
            //this.lblReturnMsg.Style.Add(HtmlTextWriterStyle.Color, "Green");
            //}
            //catch (Exception err)
            //{
            // this.lblNameMsg.Text = "<font color=red>发送失败" + err.Message.ToString() + "</font>";
            // }

        }
    }
    #endregion