I'm running Entourage 2004 on OSX 10.4.11. I regularly archive my email to keep the Entourage database from getting too big. I have my emails sorted in folders and I simply drag the folder to my backup drive where it creates a mbox file and then delete the folder within Entourage. As a test, I reimported the mbox file and I noticed that not all of the emails were there. In one case 1/3 of them were gone. I work in an office and this has happened to 2 of us today. Any thoughts on this? Thanks Keith