using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net.Mail;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSend_Click(object sender, EventArgs e)
{
MailMessage mail = new MailMessage();
mail.To.Add(txtTo.Text);
//mail.To.Add("amit_jain_online@yahoo.com");
mail.From = new MailAddress(txtFrom.Text);
mail.Subject = txtSubject.Text;
mail.Body = txtMessage.Text;
mail.IsBodyHtml = true;
//Attach file using FileUpload Control and put the file in memory stream
if (FileUpload1.HasFile)
{
mail.Attachments.Add(new Attachment(FileUpload1.PostedFile.InputStream, FileUpload1.Fil ...
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