If a person has Server1 and Server2 setup in a mirror setup, then later your business grows and you decide you want to branch only email off to Server3 and Server4 in a mirror setup, then if after you add Server3 and Server4 into the ISPConfig server farm and reconfigure the email domains to point to Server3, will this transfer all emails from Server1 over to Server3 or will that be a manual process to bring the emails over with RSYNC or Unison?? Or how can this be done without losing emails or having email accounts residing on two servers?? Thanks
You can add server later at any time to a ISPConfig server and turn it into a multiserver system. you have to move the email files manually e.g. with rsync.
