GAL vs. OAB - Why can't I see my AD changes?

posted by  zhoe (64)  10 months ago (exchangeguy.blogspot.com)

When you run Outlook in non-cache mode, or connect using Outlook Web Access (OWA), you access the Global Address List (GAL) directly. Any changes made will appear as soon as your AD forest is replicated.When you run Outlook in cache mode, you are viewing an offline copy of the GAL called an offline address book (a.k.a. offline address list). By default, Exchange rebuilds the OAB once a day. Also by default, Outlook downloads the OAB once when you launch it - thinking it doesn't need to check more often because of the rebuild schedule. If you need to force a new entry to show up immediately, you need to do two things. First, manually rebuild the OAB. Open the System Manager (ESM) and expand Recipients then click on Offline Address Lists. In the right pane right