public void SendEmailToClient(string email, string subject, string content)
{
    SmtpClient smtpClient = new SmtpClient();
    NetworkCredential basicCredential = new NetworkCredential("thiago.friedman@hotmail.com", "123");
    MailMessage message = new MailMessage();
    MailAddress fromAddress = new MailAddress("thiago.friedman@hotmail.com");

    smtpClient.Port = 25;
    smtpClient.Host = "smtp.live.com";
    smtpClient.UseDefaultCredentials = false;
    smtpClient.Credentials = basicCredential;

    message.From = fromAddress;
    message.Subject = subject;
    message.Body = content;
    message.To.Add("thiago.friedman@hotmail.com");

    try
    {
        smtpClient.Send(message);
    }
    catch (Exception ex)
    {
        Response.Write(ex.Message);
    }
}

smtpClient.Port = 587;
 smtpClient.EnableSsl = true;