Article ID: 970118 - View products that this article applies to.
The IMAP4 service crashes on a computer that is running Microsoft Exchange Server 2007. Then, you receive the following error message:
System.ObjectDisposedException in mailboxsession.get_timezone.
When this problem occurs, the following error is logged in Event Viewer:
Event Type: Error
To resolve this problem, apply the following update:
(http://support.microsoft.com/kb/971534/ )Description of Update Rollup 1 for Exchange Server 2007 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.