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I recently migrated from Exchange 2003 to 201 and am getting the following errors in the event log:<br />
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Active Manager failed to mount database Public Folder Database on server. Error: An Active Manager operation failed with a transient error. Please retry the operation. Error: Database action failed with transient error. Error: A transient error occurred during a database operation. Error: MapiExceptionADPropertyErr<wbr />or: Unable to mount database. (hr=0x80004005, ec=2418)<br />
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I followed the instructions in this article (<a href="http://www.vware.at/?p=169" rel="ugc">http://www.vware.at/?p=169</a>) until I ran in to a snag at the bottom. I do not see the msExchOwningPFTree attribute even after resetting the filter. 
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I recently migrated from Exchange 2003 to 201 and am getting the following errors in the event log:

Active Manager failed to mount database Public Folder Database on server. Error: An Active Manager operation failed with a transient error. Please retry the operation. Error: Database action failed with transient error. Error: A transient error occurred during a database operation. Error: MapiExceptionADPropertyError: Unable to mount database. (hr=0x80004005, ec=2418)


I followed the instructions in this article (http://www.vware.at/?p=169) until I ran in to a snag at the bottom. I do not see the msExchOwningPFTree attribute even after resetting the filter. 

Exchange 2010 Public Folder Mount Error

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.