I am using my gmail's email account to send emails in asp.net website. It works fine on hosting server but it donot works if I try to sent email on loclserver.

Please guide me what I should do to make it sending emails even on localserver ? Do I need to install some smtp server on my local machine ? I have not installed any smtp server on my machine. How and where from I can get smtp server and kindly also guide how I can do its setting to use on local machine.

Thnaks

Here is my Code

 public string SendEmail(Email email)
    {
        string errmsg = null;

        if (dt != null)
        {
            try
            {
                dt = systemrep.GetSystemInfo();
                dr = dt.Rows[0];
                From = dr["nm_EmailFrom"].ToString();
                SMTP = dr["nm_SMTP"].ToString();
                Port = dr["amt_Port"].ToString();
                EmailId = dr["nm_emailUserId"].ToString();
                EmailPassword = dr["nm_emailPassword"].ToString();
                DefaultCredations = Convert.ToBoolean(dr["ind_Credentials"].ToString());
                MailMessage message = new MailMessage();
                SmtpClient smtp = new SmtpClient();
                NetworkCredential mailAuthentication = new NetworkCredential(EmailId, EmailPassword);
                message.To.Add(new MailAddress(email.To));
                message.From = new MailAddress(From);
                message.IsBodyHtml = true;
                message.Subject = email.Subject;
                message.Body = email.Message;
                smtp.UseDefaultCredentials = DefaultCredations;
                smtp.EnableSsl = true;
                smtp.Port = 25;
                smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
                smtp.Host = SMTP;
                smtp.Credentials = new NetworkCredential(EmailId, EmailPassword);


                smtp.Send(message);
            }
            catch (SmtpException smtpEx)
            {

                errmsg = string.Format("alert('There was a problem in sending the email: {0}');", smtpEx.Message.Replace("'", "\\'"));
            }
            catch (Exception generalEx)
            {
                errmsg = string.Format("alert('There was a general problem: {0}');", generalEx.Message.Replace("'", "\\'"));
            }
        }
        else
            errmsg = "An error accured whilte getting email settings from database, process couldn't be completed";

        return errmsg;
    }

}