Exchange 2016 free/busy

Steve Payne 1 Reputation point

Exchange 2016 DAG with 2 mail servers, and 3 mailbox databases. We started with 2 databases and decided to create a 3rd. All users in the newly created database cannot get free/busy information for the users in the other 2 databases. They can however, see free/busy for the other users who have mailboxes in their database. Users in the other 2 databases can see free/busy for the users in both of their databases, but not the users in the newly created database. All policies are being applied correctly, and Outlook is configured correctly. All users can send and receive mail to each other no matter what database they are in. Thanks in advance for any help with this.

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. Yuki Sun-MSFT 37,361 Reputation points

    Hi @Steve Payne ,

    Is there any error message when users fail to check the free/busy information in the other databases?
    Any relevant logs in the Event Viewer?
    How about moving one of the users' mailbox from the newly created database to any one of the old databases?

    Besides, it's suggested to try moving the newly created database to the other mailbox server and see how it goes:

    Move-ActiveMailboxDatabase <newdb> -ActivateOnServer <servername>  

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