This document explains in detail the Exchange 2000 Public Folder replication process. In the past, there has been little documentation on how this process works. The document bridges the gap between the low level MDB source code documentation and the high level help supplied with Exchange 2000 Server. The replication engine in Exchange 2000 works in a similar way as to the replication engine in Exchange . Much of what is documented here can equally be applied to previous versions of Exchange. | Exchange 2000 Public Folder Replication Version Exchange 2000 Public Folder Replication Introduction 2 Introduction The chapters have been written to be as stand alone as possible. However to avoid duplication this was not always possible. You are advised to read through the whole document as some subjects especially permissions are covered in multiple places. This document explains in detail the Exchange 2000 Public Folder replication process. In the past there has been little documentation on how this process works. The document bridges the gap between the low level MDB source code documentation and the high level help supplied with Exchange 2000 Server. The replication engine in Exchange 2000 works in a similar way as to the replication engine in Exchange . Much of what is documented here can equally be applied to previous versions of Exchange. This document cannot answer every question on Public Folder replication nor can it provide details on all the possible replication scenarios. Instead it describes the replication process what settings are important and how public folders interact with the Active Directory and email in general. From a troubleshooting perspective knowing how something is supposed to work makes it much easier to figure out why something is not working. This is what this document aims to do. The document is broken down into several main sections covering the basics of Public Folders an overview of the replication process details about the different types of replication messages plus many examples of the process in action and how this process scales in larger topologies. It also covers public folder directory entries emailing to public folders permissions transport and referrals. While these latter issues are not directly related to public folder replication they touch on it so are included here. Also there are deployment issues with the placing of Public Stores. Finally there are sections on common problems how to troubleshoot them and