New users not showing in Global Address Book

PRK 16 Reputation points
2022-08-12T17:52:45.247+00:00

We are having issues with new users not showing in Global Address Book.
The things that I have done so far:

  • When I check OWA the new users show up.
  • Clients Outlook is set to cached Exchange mode. When I delete the offline address book folder (C:\Users\testuser\AppData\Local\Microsoft\Outlook\Offline Address Books) and download the “global address book”, all new users show up in the list. If I try to download the address book after that the download task just halts at processing.
  • On the server I ran Update-OfflineAddressBook "Default Offline Address Book" and get no errors.
  • Get-OfflineAddressBook | Format-List *
    230748-oab-issues.jpg
  • Test email auto configuration displays no errors and the OAB URL path matches the GUID from the Exchange Offline Address Book.

Any help will be greatly appreciated.

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. PRK 16 Reputation points
    2022-09-09T12:54:24.173+00:00

    The arbitration mailbox already exist however I did do step 3 and 4 from the link you sent me. Still no luck
    Should I delete the existing arbitration mailbox?

    I suspect that there is an issue with the web.config file located in C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\OAB.
    How can I restore that file? I don't have an old enough backup to restore that file.
    I did try a remove-OABVirtualDirectory and I deleted the contents of OAB folder. Then I created a new OABVirtualDirectory however nothing gets recreated in the OAB folder.

    Thank you for the help.