Building a Web Site with Membership and User Login

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
    <system.web>
        <authentication mode="Forms" />
    </system.web>
    <system.net>
        <mailSettings>
            <smtp from="shreekumar@in.com">
                <network host="localhost" password="" userName="" />
            </smtp>
        </mailSettings>
    </system.net>
</configuration>