” Well, the truth of the matter is that our new joiner Joe is in fact , an update to the Address Book won’t become available to the user until about 48 hours after the change.This situation however is extremely rare since the default maintenance time on Exchange is at AM and updates and downloads are usually performed during working hours.Quite often all Administrators, even Exchange Administrators simply refer to the users they see in the Address section of Outlook casually as the GAL for ease of reference, but really more often than not, you are looking at the OAB.However sometimes in large complex organisations we have a situation where a new joiner joins and their colleagues want to email them immediately, but they don’t appear in Outlook for them so they call the Helpdesk “Why isn’t Joe Bloggs in the GAL??It can be accessed when using a CUMC email (@cumc.columbia.edu) account with Outlook or when logged in to the Outlook Web App.If you are not seeing correct contact information in the GAL for someone that has a valid email address (i.e.Whether you're having trouble migrating or synchronizing your GAL or need to know how to modify, hide or remove GAL information, you'll find help here.When adding new accounts in Active Directory, the option to create an email address is enabled.
GAL Objects are directly viewable in the Exchange Management Console/Shell and OWA and Microsoft Outlook BUT ONLY IN ONLINE MODE – The GAL will only present objects that have AD Attributes beginning with ms EXCH* (and some others) populated that it uses to filter on.
If your company hosts its email system using Microsoft Exchange, you have the benefit of a centrally-managed address book called the Global Address List, or GAL.
Maintained by your IT department and stored on the Exchange server, the GAL usually contains names, addresses and email information for everyone in your organization with a company email address.
If you are using Outlook 2003 or 2007 you may be in "Cached Mode", and you are looking at a copy called the "Offline address book" This only gets updated Every 24 hours, and the copy on the server only gets updated every 24 hours at (by default).
In addition to this there a a few methods by which your Outlook clients get the offline address book.*Note: Unless you are NOT in cached mode.