I have a few users that have left the organization and had rather large mailboxes. I was doing some cleanup and deleted the mailboxes only to find out they were still in a disconnected state. I ran the cmdlet: Remove-StoreMailbox -Database "DBName"-Identity"mailboxguid here" -MailboxState Disabled. After running that command the mailbox was gone from the database however, I noticed I didn't reclaim any space. The users mailbox was 15GB but yet I didn't get back that space. Is there another command I have to run? This is a single Exchange 2013 SP1 server.
Thanks