Hi,

Try this functions

try
        {
            // Create a new blank MailMessage
        MailMessage email = new MailMessage();


        
        email.BodyFormat = MailFormat.Html;
        email.From = "from@mydomain.com";
        email.To = "to@mydomain.com";
        email.Subject = "test";
        email.Body = "bodycontents";


       // Set the SMTP server and send the email
                                SmtpMail.SmtpServer = "localhost";
                                SmtpMail.Send (email);

                                
                                
                                lblMessage.Text = "Your email has been sent";
                        }
                        catch(Exception ex)
                        {
                                                                
                                lblMessage.Text = ex.ToString();
                        }