Migrate Email Domain
This tutorial will walk you through how to migrate Email domain from one mail server to another one :
Copy the whole folder for a email domain from old mail server to the new one at the same path if both mail server have the same edition or file struction .
Add one line to file domainlist.xml located at path C:\Program Files (x86)\SmarterTools\SmarterMail\Service for this domain .
Restart the SmarterMail service , the new domain name and all its users will show up .