Hi List, Recently, we changed the backup software on our exchange server. Before, we used Backup Exec 9.0, and the newly acquired backup software is Netvault. After some time, we noticed an increase in disk space that wasn't there before... It turns out that Netvault does not delete the transaction logs after a successful full backup of the exchange server... To troubleshoot the issue, I enabled the old backup exec backup (that was still there) to run a backup and see what happened. Well, unfortunately, backup exec does not remove the transaction logs either.. This sort of gives me the idea that is not really the backup software that is causing this problem, but exchange itself... Does anyone ever has a similar problem, or knows how to resolve this issue? Kind regards, Dennis Appelboom XB