Yes you will need to setup the MX records for your domain name.
You can configure the MX records by
1. logging into your control panel
2. Click on the setup tab and then the email tab
3. click on the button labeled "Advanced: Configure MX Records"
A word of warning: Adding MX servers will remove your site’s email from Ubertor’s control. You will need to configure/access your mail via your third-party provider.