I am attempting to migrate domains hosted on a working installation of SmarterMail 16 to another system.  The new system has a different folder layout.  The new system has the license key from the old system for now.  The domains are not being shown in the admin interface, despite changing the domain location in domainList.xml and restating the SmarterMail service and IIS site.  No logs seem to show any errors.  Any ideas where I should look to troubleshoot this?