I just deployed Exchange 2010 co-exist with my Exchange 2003. I used an account during installation for both CAS/Hub and Mailbox role. After installation, I noticed there is a mailbox for that account I used in Exchange 2010 mailbox database.
I went and disabled t hat mailbox and purged it. Is this going to be a problem? Do I need that mailbox? If so, can I re-create it? Is there a special way to create this?
I already have a postmaster mailbox in Exchange 2003 that I use.
Thanks