How to send email from webpage to a yahoo account?

[JnrJnr]

Hi everyone I have some trouble sending email to my outlook account from asp.net page. I think my code is right but I have an idea the problem is with the SmtpClient(conf iguring the right outlook smtp server name). I get the error "failure sending mail".
Any help or ideas would be appreciated a lot

protected void Button1_Click1(object sender, EventArgs e)
    {
        sendMail(txtEmail.Text, txtMessage.Text);
    }

    private void sendMail(string from, string Message)
    {
        string mailServer = "smtp.telkomsa.net";
        MailMessage message = new MailMessage(from, "myemail@telkomsa.net", "feedback", Message);
        SmtpClient mailClient = new SmtpClient();
        mailClient.Host = mailServer;
        mailClient.EnableSsl = true;
        //mailClient.Port = 110;
        mailClient.Credentials = new System.Net.NetworkCredential("email@telkomsa.net", "password");
        //mailClient.UseDefaultCredentials = true ;
        mailClient.Send(message);
        message.Dispose();
    }

[JnrJnr]

2 minutes after posting I got it!
I just had to use the correct smtp name. In this case its not smtp.telkomsa.n et but smtp.dsl.telkom sa.net