Hi All: Environment: Windows 2000 Advanced server with Exchange 2000 Enterprise Edition with SP3 and rollup for SP3. i logon as domain administrator with all access rights. when i go to exchange system manager, and go to recipients then All Address Lists then click New Address List as "Test" i click on Finish button then the windows shows Error Access Denied and with more info : facility : Win32 id no : 80070005 exchange system manager Any help will be appreciated!! Thanks. Rajiv