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In a Microsoft Exchange Server 2003 and a Microsoft Exchange Server 2007 co-existing environment, you set Public Folder replication between an Exchange 2003 server and an Exchange 2007 server. Property validation will be performed against the public folder replication messages on the Exchange Server 2007 server. If a failure occurs during the processing, a property validation exception is thrown and the replication will not occur. However, the Exchange 2007 server does not log any event about the public folder replication messages.
To resolve this problem, install Update Rollup 8 for Exchange 2007 Service Pack 1.
For more information about Update Rollup 8 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
After you apply this hotfix, the following event message will be generated for the property validation exceptions:
Event Type: Error Event Source: MSExchange Store Driver Event Category: MSExchangeStoreDriver Event ID: 1020 Description:The store driver couldn't deliver the public folder replication message from <Source replication Server> due to the fail: Property validation failed. Property = [xxxx] AddrType Error = AddrType is too long: maximum length is xx, actual length is xx...
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.