However, be careful, don't create too many lists, and furthermore, give thought to meaningful names for your lists.
The situation, you want to modify the GAL, however, you discover that you cannot edit (or delete) the Default Global Address List.
Method 2: Exchange Management CONSOLE Here below is an alternative to Power Shell.
Before you 'Apply' your Global Address List you may like to click on Edit, the benefit is that you can check, and if necessary, edit the settings.
Secondly, once created, you can only edit it with the set-Global Address List cmdlet. c) Revert to the old trick of rebooting the server, maybe it has just received a 'Patch' or update.