You have a Microsoft Exchange Server 2007 environment that has many public folder stores spread out across slow wide area network (WAN) links. In this situation, the public folder store on an Exchange 2007 server may take several minutes to mount.
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This problem occurs because Exchange 2007 tries to contact every server that holds public folder stores when a public folder store is mounted. This behavior generates a remote procedure call (RPC) to the servers across the WAN links. The RPC can take several seconds for each server. Therefore, a long delay occurs before the public folder store mounts.
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This problem is resolved in Exchange Server 2007 Service Pack 2.
For more information about Exchange Server 2007 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
935490 (http://support.microsoft.com/kb/935490/)
Description of Update Rollup 2 for Exchange 2007
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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