The Offline Address Book
The OAB is a snapshot of the Global Address List (GAL) that Outlook clients can download from Exchange to provide a local directory source for address validation and lookup. All recipients in the GAL except those that are marked with the Hidden From Address Lists property are included in the OAB (Figure 12-15). You can discover a list of hidden recipients with the following command:
Get-Recipient -Filter {HiddenFromAddressListsEnabled -eq $True}
Figure 12-15. Hiding a mailbox from address lists.
Outlook clients need to download a copy of the OAB before they can function fully offline. The OAB contains a subset of the properties ...
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