Microsoft Exchange Server

How to configure Offline Address Book in Exchange Server 2019.

The offline address book (OAB) is employed by Outlook clients using cached mode for address lookups when the clients are offline.

1- Log in the Exchange admin center and click the servers tab and click databases and Highlight your mailbox database and then click on the edit button.

exchange admin center

2- Select client settings and click on the browse button.

configure offline address book exchange 2019

3- So, select Default OAB and click ok.

default offline address book

4- Now you can see the Default Offline Address Book selected for the mailbox database so click on save.

offline address book client settings

5- How to create a new Offline Address Book and assign it to the database in Exchange 2019.

This example creates an OAB named OAB NEW that contains the default global address list.

Now open Exchange PowerShell console and type the following command

New-OfflineAddressBook –name “OAB NEW” –Addresslists “\Default Global Address List

offline address book powershell

6- Log in to Exchange Admin Center > Left side select Servers > select Databases > select the database you want to assign the OAB to and click the Edit icon.

exchange admin center databases

7- On your left side selects client settings and clicks the Browse button.

configure offline address book exchange 2019

8- So, select the OAB to assign to the mailbox database and click ok.

default offline address book

9- Click Save.

offline address book client settings

For more details click here

Jamil Parvez

Jamil Pervez works as a Network Administrator, based in Kuwait with a Primary focus on Microsoft technologies. Microsoft Certified MCSE, MCTP, MCITP, CCNP, CCIP, CCVP with 20 years of experience in administering Windows Servers, Exchange, VMWare, Veeam B&R, Veritas BackupExec.

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