Hi All, I'm System Administrator and quite new in Ms Exchange 5.5. I would like to ask you something about it. 1) I have 20 users connecting to MS Exchange and each of them has their own mailbox. The size of mailbox keep accumulating as they keep so many email in their mailbox. Because of this Exchange database become very big and I check exchsvr folder is more than 5Gigabite and took up my harddisk space. I asked the users to clean their mailbox by deleting all unimportant email but the size of exchsvr folder remain 5 Gigabite. It seems like even after deleting email it doesn't affect Ms exchange database. Is it possible to compress the database to reduce harddisk space ? Kindly advise me. 2 ) Could you pls give me web site where I can get more info about MS Exchange 5.5 ?