I am in the middle of migration from Exch2003 to Exch2010. Moving mailboxes from 03 to 2010. I am about finish with the first of 3 Mail Stores. I would like to remove and delete the first Mail Store to recover some space on the Exch2003 server because its running out of space fast.
I believe there is some special way to remove the first mail store because it contains the SMTP, Microsoft System Attendant, System Mailbox. I think the System Attendant is the most important. What is the correct process to remove this first mailstore so I don’t disrupt or mess up my old dying Exchange 2003 rather my users that are still on the old server.