Description of the "Maintain per-user read and unread information" setting in Exchange Server 2003

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Article ID: 929396 - View products that this article applies to.
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INTRODUCTION

This article describes the behavior of the Maintain per-user read and unread information for this folder setting for public folders in Microsoft Exchange Server 2003.

MORE INFORMATION

You can select or clear the Maintain per-user read and unread information for this folder check box on the General tab on the Properties page for a public folder.

When you select this setting for a public folder, the items in the folder change from the Unread state to the Read state for each user when the items are viewed by the user.

However, the state changes from Unread to Read only for the user who viewed the item. When another user views an item that has been viewed by other users, the item appears in the Unread state for that user. When the item is viewed by the user, the item changes to the Read state. Therefore, the Read or Unread state for items is maintained per user. The status is not maintained per public folder.

For example, consider the following scenario:
  • A public folder contains three unread items: Message1, Message2, and Message3.
  • The public folder is viewed by two users: User1 and User2.
  • User1 opens the public folder and views Message1. The Unread state for Message1 changes to the Read state. User1 then closes the public folder.
  • User2 opens the public folder and sees Message1, Message2, and Message3 in the Unread state.
  • User1 opens the public folder and sees Message1 in the Read state, and Message2 and Message3 in the Unread state.
If you clear the Maintain per-user read and unread information for this folder check box in the public folder's properties, the Read or Unread state of each item is not tracked. All items in the folder are in the Unread state, regardless of whether they have been viewed by a user.

Notes
  • When you clear the Maintain per-user read and unread information for this folder check box, you must dismount the public folder store and then remount the public folder store for the change to be completed.
  • If the Maintain per-user read and unread information for this folder check box is cleared, changes take effect immediately when the check box is selected.
If you must have a folder that can be viewed by a group of users who must be able to see whether an item has been viewed by any other user in the group, use a shared mailbox. In a shared mailbox, when an item is viewed by one user, the item appears in the Read state to all the other users.

The following articles in the Microsoft Knowledge Base describe various service packs and hotfixes for Exchange Server 2003. These service packs and hotfixes resolve issues that are related to the Read and Unread information for public folders.

893245 The Favorite Folders pane may display incorrect information about unread e-mail messages that are in Outlook public folders in an Exchange 2000 Server or Exchange Server 2003 environment
893164 An incorrect number of unread items is still displayed for a public folder in the "Favorite Folders" pane in Microsoft Outlook after you install the hotfix for Exchange Server 2003 that is described in the Knowledge Base article 843159
843159 An incorrect number of unread items may be displayed for public folders when you use Outlook with Exchange Server 2003
836686 The number of items that are marked as unread in an Exchange 2003 public folder is incorrect
827555 An incorrect number of unread items may be displayed for public folders in Exchange 2000 Server SP3

Properties

Article ID: 929396 - Last Review: October 25, 2007 - Revision: 1.1
APPLIES TO
  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition
Keywords: 
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