When you are prompted for Connection Settings you need to specify the following:
- Imap Server: type in you server hostname. If you do not know it, you can contact your current host or view the server name in Outlook.
- Encrypted Connection, Port and Authentication: Click Prefill connection settings for Migration Wizard to try to set them automatically, contact your current host to find them out or view them in Outlook if you have at least one of the mailboxes connected through it.
Click Save & Test.