If you choose to remain with your current domain registrar and DNS host, you will just need to point your Mail Exchange (MX) Records to us. To do so, you'll need to contact your current DNS hosting company and ask them to redirect your MX records according to the following specifications. Or, if you have access to your hosting company's control panel, you can make these changes yourself.
DNS entries can be found on this page: https://support.rackspace.com/how-to/set-up-dns-records-for-cloud-office-email/
MX Records for OTTO Sport Webmail
Updated over a month ago