Let users recover their lost passwords automatically through email.
Users sometimes (in reality, a lot of times!) forget their passwords, and you need to have a mechanism to help them recover their passwords easily. One of the most common ways is for the site to ask for your email address so that it can send you the password. In ASP.NET 2.0, this functionality is accomplished by the PasswordRecovery control.
The PasswordRecovery control allows users to retrieve their forgotten passwords via email and makes it a snap to implement this functionality for your site.