The Offline Address Book

The OAB is a snapshot of the 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 marked with the Hidden From Address Lists property are included in the OAB (Figure 7-14). You can discover a list of hidden recipients with the following command:

A screen shot taken when editing mailbox properties through EAC, showing a mailbox in which the Hide From Address Lists check box is selected. Exchange will no longer show this mailbox in the GAL or any other address list, so it won’t appear in the OAB either.

Figure 7-14. Hiding a mailbox from address lists

Get-Recipient –Filter { HiddenFromAddressListsEnabled –eq $True }

Outlook clients need to download a copy of the OAB before they are fully functional when working offline. The OAB contains a subset of the properties held for objects ...

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