Article ID: 954237 - View products that this article applies to.
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On a Microsoft Exchange Server 2007 server, you may find that the IMAP service crashes intermittently. When this problem occurs, IMAP clients cannot access their mailboxes. Additionally, the following error message is logged in the event log:
To resolve this problem, download Update Rollup 4 for Exchange 2007 Service Pack 1. For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 4 for Exchange Server 2007 Service Pack 1For more information about how to install the latest Exchange service pack or update rollup, see the following Exchange Help topic:
How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.