Registration page with captcha and Confirmation Email in ASP.Net MVC

Ravibhush says:

How to Send An activation link when user is register in asp.net mvc4.

plese,

Guide me to step by step process.

 

 Above this link  is not helpful for me .

I want to design a registration page, and if  i click on the create account button , then this button send a activation link on email account.

And then activate the account  then  i able to login.