Here you can import users on the Betaout account. Click on this option
How to do it:
Click on settings option
Under data import, click on user import.
Then click on ‘Add New Import’ and choose the file in .CSV (comma separated values) format and upload.
Then you can map the properties in Header row of .CSV file with the properties in Betaout.
Click on start importing.
Similarly, you can import bounce list, unsubscribe list, order/transaction list, product list, categories and spam list.
Screen shots embedded for better understanding.