Exchange server 2016 global address list not updating

You should also check that all four sites can communicate on port 25, in order to allow replication traffic to pass through.

The easiest way to test this is to use an old Microsoft tool known as

If Outlook is left running constantly in Cached Exchange Mode, it automatically updates the offline address book about one time per day depending on updates on the computer that is running Exchange.

The offline address book size can vary from several megabytes to hundreds of megabytes in uncompressed form.

Once installed, use the command line to navigate to the directory that you installed the tool to and run the following command: If this is working properly, you should receive a "listening" response.

You should also make sure that the OAB references on each site's Exchange server are correct.

If you make a change to your organization and want to ensure that replication occurs immediately, you can force synchronization using the following Exchange Management Shell command: About the author Dave Leaver has worked in the IT industry for the last ten years as an IT support engineer.

He currently works for an IT support company in Cheltenham, U.

If you are in Cached Exchange Mode and your connection status is Disconnected, Trying to Connect, or Offline, you can see only the information that is in the offline address book.

The offline address book contains the properties of a user, such as email addresses, that Microsoft Outlook requires to send an email message and display information about the sender.

By using an offline address book, Outlook doesn’t have to connect to Microsoft Exchange Server to resolve names or open the records for each user.

Therefore, there is no need for equivalent instructions for the Mac operating system.

If you're having issues with your Outlook address book, such as a new employee's information not showing up, there may be a simple solution.

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