[Zope] Additional user properties

Hello, I nned to retrieve some additional properties with my users. How can I make AUTHENTICATED_USER.email to be valid? Thanks Ulrich -- Searchengine Know How - Webpromotion - Optimization - Internal Search World Wide Web Publisher, Ulrich Wisser, Odensvag 13, S-14571 Norsborg http://www.publisher.de Tel: +46-8-53460905 Fax: +46-8-534 609 06