I have an Exchange 2003 database that is 81 GB in size according to event ID 1216. There is also 7 GB of free space, so the effectual size should be 74 GB. When we add up the total space used by all mailboxes in System Manager, they add up to only about 35 GB. Our retentions are set to 0 days (both for deleted items and mailboxes) and mailbox manager runs each night at 2:00 am. Wait for next backup check box is unchecked. So, why doesn't the database drop in size, and why don't we see more white space??
The server is 2003 standard, single domain, single Exchange server environment.