Article ID: 295697 - View products that this article applies to.
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Items that you post in public folders that are configured as newsgroup folders or Network News Transfer Protocol (NNTP) folders may be converted to the IPM.POST message class, no matter what the original class of the item was. This conversion may break the functionality of non-NNTP items (for example, an item with an IPM.TASK message class).
When the NNTP service is running, the service is notified when new items are added to folders that are published as newsgroups. This problem can occur because the message class of these items is then changed to IPM.POST, regardless the original class. The NNTP service does not check to make sure that it is forcing only items that do not have an original class to the IPM.POST message class.
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378The English version of this fix should have the following file attributes or later:
(http://support.microsoft.com/kb/301378/EN-US/ )XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
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Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 2.