Hi , I am trying to clean up clients mailboxes by moving emails but this is not reflected to exchange 2003 database, how can I reflect that space to get more space since am running out of space on the drive that contain the database files Thanks in advance for your helpmohammad

Offline defragmentation with eseutil utility is the only thing to reduce the size of database. Alternatively you can move all the mailboxes to another database (you can create more than one DB only if you have Enterprise edition) which has database files (edb and stm) on the partition where you have enough space and delete the current DB. Refer below article on how to defrag DB. You can use /t switch to give temporary path of your shared network drive foroutput filesince you don't have 110% of free space on the derive where current DB sits. How to defragment with the Eseutil utility (Eseutil.exe) http://support.microsoft.com/kb/192185 Before running offline defrag make sure that onlinemaintenancecleaned up the space and you have enough white space to to reduce. White space shows in 1221 is the approx amount of space you can reduce with offline defrag. Online defragmentation has completed a full pass on the database; Review the Application log for event 1221 to make sure that online maintenance finished successfully http://technet.microsoft.com/en-us/library/bb217852.aspx Why you shouldn't consider it as regularmaintenance. Is offline defragmentation considered regular Exchange maintenance? http://msexchangeteam.com/archive/2004/07/08/177574.aspx Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Amits post is a very solid answer for this question, the following resources are just some supplement: How to defragment Exchange databases Understanding Exchange Databases Disk Consumption Offline Defrag not reducing physical store size (Similar case) Exchange 2003 Mailbox Move (Similar case)