You can connect your domain via nameservers if you’re not using any service like email accounts through your external domain host.
That way, your domain remains at your registrar, but is being managed by Jimdo for the most part.
Change your domain’s nameservers to the following:
After changing the nameservers, it can take up to 24 hours to fully connect your domain to your Dolphin website.
Please also make sure that you’ve added your domain to your Dolphin website.