SMTP Settings for Web.config

web.config

<system.net>
    <mailSettings>
      <!--<smtp deliveryMethod="Network" from="">
        <network host="smtp.gmail.com" port="587" enableSsl="true" userName="" password="" defaultCredentials="false"/>
      </smtp>-->
      <smtp deliveryMethod="SpecifiedPickupDirectory">
        <specifiedPickupDirectory pickupDirectoryLocation="c:\Tmp\mail\" />
      </smtp>
    </mailSettings>
  </system.net>