However, immediately after creation a new public folder mailbox will not be used by Autodiscover.
When are new mailboxes eligible for this process?īy default, all public folder mailboxes deployed in the environment can serve hierarchy connections to the clients.
Even if Autodiscover is offline for some reason in the environment, you may see users successfully accessing public folders via OWA, but not Outlook clients. In other words, OWA uses similar functionality that the Get-Mailbox cmdlet uses to get list of available public folder mailboxes the user can utilize. Note: In the case of Outlook on the web (we’ll call it OWA for short) clients accessing public folders, public folder mailbox access does not rely on the Autodiscover service even though the same selection process logic is used. If that public folder mailbox is not available for some reason, the client will fail to reach the public folder infrastructure and will not fall back to a random public folder mailbox. When a mailbox has a default public folder mailbox assigned, the client will always attempt to connect to this public folder mailbox for hierarchy connections. In most cases the GetPublicFolderRecipient function will (randomly) pick a public folder mailbox from the available list to be handed over to the Autodiscover Service, which in turn gets returned to the client.Īnother possibility is that the user’s mailbox has a static DefaultPublicFolderMailbox assigned. This function gathers information for the available public folder mailboxes in the environment available for serving hierarchy connections. To provide a value for this element during the initial request/response interaction, the Autodiscover service calls a function named GetPublicFolderRecipient. An additional Autodiscover request will be made to request connection settings for the SMTP address of the public folder mailbox. This element will contain the SMTP address of a public folder mailbox within the environment. During the initial response, the Autodiscover service may indicate there are public folders available in the environment by including an XML element named.
When the user launches the Outlook desktop client on Windows or Mac, client contacts the Autodiscover service to determine connection settings for the user’s primary mailbox and their archive mailbox if they have one. How clients connect to the public folder hierarchy mailbox There is a lot here as we are going through several examples. We will assume that you are already familiar with basic modern public folders concepts so we will not go there (but might link to relevant articles). In this blog post, we will discuss some of best practices and recommendations regarding modern public folder deployment as well as discuss various related concepts. It is important to plan migrations for public folders so the client experience with their use is good. Since the release of Microsoft Exchange Server 2013, we have heard questions regarding the sizing and deployment of modern public folders.