#SHARE EXCHANGE PUBLIC FOLDER ON INTERNET UPDATE#
In order to access public folders cross-premises, users must upgrade their Outlook clients to the November 2012 Outlook public update or later. Conflicts can happen due to non-routable email addresses assigned to mail enabled public folders, conflicts with other users and groups in Office 365, and other attributes. Implementing public folder coexistence for a hybrid deployment of Exchange with Office 365 may require you to fix conflicts during the import procedure. The public folders in this configuration cannot be accessed using Outlook on the web (formerly known as Outlook Web App). For more information, see Hybrid Configuration wizard. These instructions assume that you have used the Hybrid Configuration wizard to configure and synchronize your on-premises and Exchange Online environments and that the DNS records used for most users' AutoDiscover references an on-premises end-point. Here is an example of proper configuration in Exchange Online: Here is an example of proper configuration in an on-premises environment: Ensure that your public folder mailbox objects are synchronized to Exchange Online and that they have auto-discoverable primary SMTP addresses. These instructions assume that Azure Active Directory Connect synchronization services (Azure AD Connect sync) is configured to synchronize public folder mailbox objects to Exchange Online.
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What do you need to know before you begin? If you have Exchange Online, Microsoft 365, or Office 365 users who aren't currently represented on-premises by MailUser objects, refer to the Microsoft Knowledge Base article KB3106618 to create matching on-premises entities.
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This MailUser object must also be local to the target Exchange Server public folder hierarchy. To enable on-premises Exchange Server users to access public folders in Exchange Online, Microsoft 365, or Office 365, see Configure Exchange Online public folders for a hybrid deployment.Īn Exchange Online, Microsoft 365, or Office 365 user must be represented by a MailUser object in the Exchange on-premises environment in order to access Exchange Server public folders.
#SHARE EXCHANGE PUBLIC FOLDER ON INTERNET HOW TO#
This article describes how to enable your Exchange Online, Microsoft 365, or Office 365 users to access public folders in Exchange 2013, Exchange 2016 and Exchange 2019 (for the rest of this article, referred to as Exchange Server). If you have Exchange 2010 public folders, see Configure legacy on-premises public folders for a hybrid deployment.