ASP.Net MVC: Send user Confirmation email after Registration with Activation Link

Here Mudassar Ahmed Khan has explained with an example, how to send user confirmation email after registration with Activation link in ASP.Net MVC Razor. The Registration Form will save (insert) data to database using Entity Framework. User will fill up the registration form with details such as username, password, email address, etc. and these details will be saved in the database table. In order to validate the email address of the user provided during registration, a confirmation email with activation link in sent to the email address and when user clicks the link, his email address is verified and his account gets activated.