After reviewing the information on multiple websites, and the MS Exchange team blog located here..

http://msexchangeteam.com/archive/2005/09/14/410821.aspx

Just so happens that I had this happen, and need a fix for a client.  Here are the steps.

Here are the steps for the registry hack:

1. Open your Registry Editor (if you don’t know how to do this…you shouldn’t be reading this article)
2. Navigate to: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesMSExchangeIS<Servername>Private-GUID
3. Create a DWORD entry by right-clicking on the folder and selecting NEW > DWORD Value with name of Database Size Limit in GB
4. Enter a DECIMAL value of anything between 18 and 75 (making sure that it is not larger than the free space on the drive where your store resides)
5. Do Steps 3 and 4 again with: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesMSExchangeIS<Servername>Public-GUID
6. Exit the Registry Editor and go into Services and restart the “Microsoft Exchange Information Store”
7. That’s it!

Copyright (C) 1997-2010, Chris Coulson and Coulson Technologies, LLC. All Rights Reserved Worldwide.

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