We have recently made a tremendous effort to reduce file space on our server by requiring each user to clean up his or her email in hopes that it will reduce the exchange database sizes.
Although each several users have decreased their mailbox size by several gig total, the .EDB and .STM don't seem to have really decreased in size.
I have also noticed that the .STM database (22.5 Gb) is nearly as large as the .EDB database (25.3 Gb). From what I have seen on several other Exchange Servers, the .STM less than half the size of the .EDB.
Can anyone explain the difference of the databases and how to manage the sizes better?