Awesome

 

diffrence betweeen web.config and machine.config

Every ASP.NET application that you has a web.config file . The settings specified in this will imply only to that application.Whereas Your System will have a machine.config file in Microsoft.NET\Framework\v1.1.4322\CONFIG Folder which contains specifications and settings at a system level.

Installing SMTP

First u just need to install IIS(internet Information Service) Add windows feature on and off window...

then yo need to install ASP.Net Services for IIS after installing it...

go to run and type "inetmgr" and enter.

Internet Information Service manager opens and here u will find the SMTP is installed and from here yo can also configure it.