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As is true with all versions of exchange, an exchange database does not free up the disk space used until you do an OFFLINE defragmentation of the message store.<br />
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To do this, you need to use ESEUTIL *carefully*!<br />
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You also need a significant amount of free disk space to store the temporary files created during the defragmentation.<br />
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See this article: <a href="http://support.microsoft.com/kb/328804" rel="ugc nofollow">http://support.microsoft.com/kb/328804</a>
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As is true with all versions of exchange, an exchange database does not free up the disk space used until you do an OFFLINE defragmentation of the message store.

To do this, you need to use ESEUTIL *carefully*!

You also need a significant amount of free disk space to store the temporary files created during the defragmentation.

See this article: http://support.microsoft.com/kb/328804 [http://support.microsoft.com/kb/328804]

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Thanks, but this article says nothing about Exchange 2007. &nbsp;Your information still applies?
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Thanks, but this article says nothing about Exchange 2007.  Your information still applies?

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I am in the middle of migrating from Win2K3 Server/Exchange 2007 to Win2K8 Server/Exchange 2010. &nbsp;I've moved mailboxes successfully and the mailboxes no longer show up on the Exchange 2007 server, but it doesn't seem to be releasing the diskspace. &nbsp;Even after a backup. &nbsp;I should have about 200 GB of free space, but when I did the backup, it only gave me about 30 GB.<br />
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Any clues?
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I am in the middle of migrating from Win2K3 Server/Exchange 2007 to Win2K8 Server/Exchange 2010.  I've moved mailboxes successfully and the mailboxes no longer show up on the Exchange 2007 server, but it doesn't seem to be releasing the diskspace.  Even after a backup.  I should have about 200 GB of free space, but when I did the backup, it only gave me about 30 GB.

Any clues?

After moving mailboxes from Exchang 2007 server to 2010, why doesn't space free up?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.