ASP.NET

AttachDbFilename=|DataDirectory|\yourFile.mdb

public partial class _Default : System.Web.UI.Page 

{

    #region  "Send email"

    protected void btnSendmail_Click(object sender, EventArgs e)

    {

        // System.Web.Mail.SmtpMail.SmtpServer is obsolete in 2.0

        // System.Net.Mail.SmtpClient is the alternate class for this in 2.0

        SmtpClient smtpClient = new SmtpClient();

        MailMessage message = new MailMessage();



        try

        {

            MailAddress fromAddress = new MailAddress(txtEmail.Text, txtName.Text);



            // You can specify the host name or ipaddress of your server

            // Default in IIS will be localhost 

            smtpClient.Host = "localhost";



            //Default port will be 25

            smtpClient.Port = 25;



            //From address will be given as a MailAddress Object

            message.From = fromAddress;



            // To address collection of MailAddress

            message.To.Add("admin1@yoursite.com");

            message.Subject = "Feedback";



            // CC and BCC optional

            // MailAddressCollection class is used to send the email to various users

            // You can specify Address as new MailAddress("admin1@yoursite.com")

            message.CC.Add("admin1@yoursite.com");

            message.CC.Add("admin2@yoursite.com");



            // You can specify Address directly as string

            message.Bcc.Add(new MailAddress("admin3@yoursite.com"));

            message.Bcc.Add(new MailAddress("admin4@yoursite.com"));



            //Body can be Html or text format

            //Specify true if it  is html message

            message.IsBodyHtml = false;



            // Message body content

            message.Body = txtMessage.Text;

         

            // Send SMTP mail

            smtpClient.Send(message);



            lblStatus.Text = "Email successfully sent.";

        }

        catch (Exception ex)

        {

            lblStatus.Text = "Send Email Failed.<br>" + ex.Message;

        }

    }

    #endregion



    #region "Reset"

    protected void btnReset_Click(object sender, EventArgs e)

    {

        txtName.Text = "";

        txtMessage.Text = "";

        txtEmail.Text = "";

    }

    #endregion

}