>Hi,
>
>Speaking about security aspect of Password recovery. Regardless of the approach of resetting password (email password in plain text, or sending a link to reset a password), what if user enters an email that does not exist in the database? Is it ok to return to the user a message such as "Email not found"? In theory someone can check if this or that person has access to the site (by entering an email address) but do you think this may create a security breach?

The very first thing you need to do is create a rescue recovery disc. If your hard drive gets trashed you won't be able to get anywhere without one. I learned this the hard way.