Our mailbox store is about 115gig in size. I think a lot of it is empty space from past employees. I would like to get rid of that space and I have read to do a offline defrag. My problem is that it will take much to long for us. So I have decided to break up out mailbox store to multiple stores. This will allow for easier management for us. My question is when I get all of the mailboxes off of our main one and moved to the new mailbox stores can I safely delete our main mailbox?