title: Email validation in createuser wizard
body: <p>I'm using createuser wizard for creating new users. I'm not using any membership provider. While creating a new user, the user has to enter the email address in the createuser wizard. How to know that the entered email address is correct? If a user enters the email as abcd@abcd.com, how to know that it is a valid email address?</p>
  
  <p>The email regular expression given in MSDN website does not work for me. It is <code>&lt;asp:createuserwizard id="Createuserwizard1" runat="server" emailregularexpression='@"^([\w-\.]+)@(([[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(]?)$"' emailregularexpressionerrormessage="E-mail address must be in a valid format"&gt; &lt;/asp:createuserwizard&gt;</code></p>