Can I clarify something here? When you ran permissions wizard and etc you would have added permissions on the mailstore which includes a variable number of storage groups. When you added the mailstore, you likely saw all the associated storage groups and was asked to select a single default mailbox store. Is this what you are referring to? If so, you would have been selecting the default mailbox store but the other storage groups would be associated with Unity as long as the have the proper permissions set on them. Let me know if this is more along the lines of what you are referring to.
Hailey
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