This article was previously published under Q309727
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When you create a message that has many nested attached messages and you send this message to an Exchange Server 2000 server that has virus scanning enabled, the store stops responding (crashes) after three or four hours. You may find that the message remains in your Outbox.
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 theMicrosoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
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.