Consider the following scenario:
- You have some public folder databases on Microsoft Exchange Server 2010 servers that are running in an Exchange Server 2010 environment.
- One of the public folder databases contains customized contact objects.
- This public folder database is replicated to the other public folder databases on the other servers.
This issue occurs because the custom message class of the contact objects incorrectly reinitialized by using the default IPM.Contact class during the replication process.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about public folder replication, visit the following Microsoft website:
957748 The custom message class of contact object is overwritten by the normal IPM.Contact class when an Exchange 2007 server replicates the contact object to any other public store