I am trying to remove the Mailbox role from my server. I have removed all hidden mailboxes except for one. When I try to remove the last arbitration mailbox on the server, I receive this error:
Exchange can't remove the arbitration mailbox "xxx"" because it's the last one in the organization.
I have already installed a new mailbox role server so I am confused why this is happening. Also, I did a search for the discoverysearch mailbox on the new server but it was not created. Should I have moved the mailbox to this server as well as the other arbitration mailboxes instead of deleting them? If so, how do I recreate them? Thanks.