Материал из .Net Framework эксперт
Using the PasswordRecovery Control
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:PasswordRecovery
id="PasswordRecovery1"
Runat="server">
<MailDefinition
From="Admin@YourSite.ru"
Subject="Password Reminder" />
</asp:PasswordRecovery>
</div>
</form>
</body>
</html>