Secure deletion of exchange messages

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Exchange security
Once a message is deleted from exchange (Using C2C Active Folders in this scenario, but could be any number of methods normally), is the information contained in this message still available in the database? Does the process of deleting the message actually clear the contents of the message from the database, or is compaction required?

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Exchange 2003 has a Deleted Items Retention set on the database.
Typically, out of box install is 30 days.
Once mail is hard-deleted from Outlook…either shift-delete or emptying the deleted items folder, the database will retain it for however many days is set in the DIR per db.
If you really want them to go away, set the DIR to zero.
-jmw

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  • PDMeat
    As the other reply stated, deleted item retention would keep it in the store for what it's setting is on database "limits". You can add the "DumpsterAlwaysOn" registry key to your outlook client and use the tools->"recover deleted items" to check both your deleted items folder and any other folder in outlook. Once you can see nothing in the deleted items recovery, you know its gone. You can use a perfmon object to see the total space that deleted item retention is taking up in the info store and you can look for the "1221" event ids in the event windows application log to see the amount of whitespace left in the database. If you have a huge amount of whitespace in the DB, you might consider running eseutil and offline defrag it to reduce the physical/actual size of the DB.
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