Adress List not showing in Outlook Client or OWA

Hi Tonito_Dux,

I was able to reproduce your issue. I created an AddressList named 'Pool Cars'. This one wasn't available in OWA/Outlook.

After that, I created a new one wit the following cmdlt:

New-AddressList 'Pool Cars' -Container "\Pool Cars"

Same result. Address List missing. Then I edited it like the following, ( only as example/testing 😞

Set-AddressList 'Pool Cars' -RecipientFilter "(RecipientType -eq 'UserMailbox')"

After some minutes of replication, the address list was available:

You could also check the address list state with:

Get-AddressList 'Pool Cars' | fl Container,Path,DisplayName,IsValid,IncludedRecipients

Regarding missing object in a Hybrid environment address list, that's a know issue and easy to fix:

https://learn.microsoft.com/en-us/exchange/troubleshoot/administration/new-address-lists-not-contains-all-recipients

Regarding the OAB error, please check:

https://support.microsoft.com/en-us/topic/description-of-offline-address-book-logging-in-outlook-9c57afcb-6774-8ff0-1fc1-fc4561ff3138

And here some best practices:

https://learn.microsoft.com/en-us/exchange/address-books/address-lists/address-lists

Hope this helps.