Article ID: 326154 - View products that this article applies to.
This article was previously published under Q326154
You cannot download the offline address book in Microsoft Outlook. Additionally, you may receive the following error messages on the Outlook client computer:
An error occurred while opening the Microsoft Exchange offline address book files on the Microsoft Exchange Server. See your administrator. Unable to download the Offline Address Book.
The Microsoft Exchange Address Book could not be accessed.
This problem may occur if you set a message size restriction. If you set a message size restriction at the transport level, it affects both the IPM_SUBTREE and the NON_IPM_SUBTREE MAPI folders.
Note The NON_IPM_SUBTREE MAPI folder includes system folders, such as the Offline Address Book (OAB).
As a result of this message size restriction, the OAB is not replicated to other replica servers from the OAB generation server. If you view the message tracking log, it indicates that the a system message with a size larger then the message size restriction never replicated to the other replica servers.
If a Network Monitor trace is taken on the source server during the course of the message transfer, there is a X-LINK2STATE DROP command from the source server for the message with a size larger then the message size restriction. As a result, the destination server drops the connection and a message transfer does not occur.
To resolve this problem, follow these steps:
The protocol size restriction is meant to reject messages on boundaries with other e-mail systems. These restrictions are effective for individual servers and should not be used as methods to limit the message size in an Exchange Enterprise Servers group.
Administrators can set the message delivery option in the Global settings to limit and control the message size restriction across an organization that uses Microsoft Exchange 2000.
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/322679/ )How to set size limits for messages in Exchange Server
(http://support.microsoft.com/kb/233205/ )SMTP protocol level message size limits affect system message delivery
(http://support.microsoft.com/kb/811870/ )How to set size limits for messages in Exchange Server
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