I have a Exchange 2007 environment running in a master domain with two child domains. I have an account in a child domain that for some reason is listed as a Shared mailbox and I need to change it to a Regular mailbox. When running the Set-Mailbox -Type command I get an error 'Account cound not be found on Domain Controller'. It's looking on the DC in the master domain. Must I add the -DomainController parameter for the child DC to the Set-mailbox command to get this to take?
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