Users not showing in Global Address List

Users not showing in Global Address List

When you are in cached mode, Outlook keeps a local copy of the GAL and it is called the offline address book - essentially, the OAB is "cached" on your local machine along with all contents of your mailbox so that if you are to get disconnected from Exchange, you can still continue reading and writing emails. The cached copy of the OAB is downloaded once in 24 hrs from the server but if the server does not generate the OAB properly then you will not get the latest details.

When you are in online mode, it simply means you are directly connected to Exchange and you are viewing everything directly from the server and nothing is stored locally on your machine.

You need to update the OAB directly from the server (http://technet.microsoft.com/en-us/library/aa997684(EXCHG.80).aspx). Make sure you increase diagnostic logging on the server for this process so you can see why these users do not show up!

How to Update the Offline Address Book

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Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007

Topic Last Modified: 2007-01-02

This topic explains how to use the Exchange Management Console or the Exchange Management Shell to update an offline address book (OAB). After you create an OAB or modify OAB settings, the changes will not be available to users until the OAB generation (OABGen) process has completed.

For information about how to create OABs, see How to Create an Offline Address Book.

Before You Begin

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To perform the following procedure, the account you use must be delegated the following:

• Exchange Organization Administrator role

For more information about permissions, delegating roles, and the rights that are required to administer Microsoft Exchange Server 2007, see Permission Considerations.

Also, be aware that the procedures in this topic will only start the update process. It can take from several minutes to several hours to complete the process. New content will not be available until the process is complete.

Procedure

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To use the Exchange Management Console to update an offline address book

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1. Start the Exchange Management Console.
2. In the console tree, expand Organization Configuration, and then click Mailbox.
3. In the result pane, click the Offline Address Book tab, and then click the OAB that you want to update.
4. In the action pane, click Update.
5. Read the warning box, and then click Yes to continue.

To use the Exchange Management Shell to update an offline address book

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• Run the following command:

·         Update-OfflineAddressBook -Identity

For example, to update the OAB named My OAB, run the following command:

Update-OfflineAddressBook -Identity "My OAB"

For detailed syntax and parameter information, see the Update-OfflineAddressBook reference topic.