send a mail with an image

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ASP.NET

Hello to all i am making an asp.net web application.. i have an image,and some text on the page..

i want to send that image and text through mail..i have coded like this..

protected void LinkButton1_Click(object sender, EventArgs e)
    {
      //Session["name"] = lblname.Text;
      //Session["rate"] = lblrate.Text;
      //Session["img"] = lblimg.Text;
      Response.Redirect("email.aspx?val=" + Server.UrlEncode(lblname.Text) + "val1=" + Server.UrlEncode(lblrate.Text) + "val2=" + Server.UrlEncode(lblimg.Text));


    }

now on the next page--

public partial class email : System.Web.UI.Page
{
    string val;
    protected void Page_Load(object sender, EventArgs e)
    {
     
     if(Request.QueryString["val"]!=null  || Request.QueryString["val1"]!=null || Request.QueryString["val1"]!=null)
     {

       val = Request.QueryString["val"].ToString() + Request.QueryString["val"].ToString() + Request.QueryString["val"].ToString();
        //val1= Request.QueryString["val1"].ToString();
        //val2 = Request.QueryString["val2"].ToString();
      
     }

    }
    protected void btnsend_Click(object sender, EventArgs e)
    {
      MailMessage msg = new MailMessage();
      msg.To.Add(txtto.Text);
      msg.IsBodyHtml = true;
      msg.Subject = txtsub.Text;
      msg.Body = txtmsg.Text + val;
      msg.From = new MailAddress(txtfrom.Text);


      SmtpClient smtp = new SmtpClient();
      smtp.Host = "smtp.gmail.com";
      smtp.Credentials = new System.Net.NetworkCredential("removed", "remove");
      smtp.EnableSsl = Convert.ToBoolean(true);
      smtp.Send(msg);
     
    }
}

the mail is sending but in the mail there is coming like


subject hi
mailed-by googlemail.com
Images from this sender are always displayed. Don't display from now on.

hide details 12:34 PM (2 minutes ago)

dgBook1val1=1000val2=Book1val1=1000val2=Book1

[EDIT]
Email id and password removed.