We upgraded from Exchange 5.5 to Exchange 2003 about 8 months ago. At the time, our 5.5 IS was around 15GB. When we checked the size in 2003, it was showing closer to 30GB.
8 months later, our IS is showing 60GB. When adding up the mailboxes, it only comes to 20GB.
Can anyone point me in the right direction as to what is going on? We have a single Exchange server, and are using two stores; one for regular employees and one for executives. Each is roughly 30GB. Why would the size of the IS grow so much when the mailboxes only total 20GB?