“The operation has timed out” when trying to send email

[yvonnehorse]

\[code\]protected void Button1_Click(object sender, EventArgs e){ try { SmtpClient sm = new SmtpClient(); MailMessage ms = new MailMessage(); ms.To.Add(new MailAddress(TextBox1 .Text )); ms.Subject = TextBox2.Text; ms.Body = TextBox3.Text; ms.IsBodyHtml = true; sm.Send(ms); } catch (Exception el) { Response.Write(el.Message); }}\[/code\]