The sender address and name are configured on Newsletter main settings, may be you need to change them there. But it’s correct what google shows, that means you provider did not setup the reverse DNS entry for your domain.
Thanks for the quick answer.
In the newsletter main settings it’s configured right.
If I look at the “Status” page I can see in the field “your server” the IP address and the servername. So I thought, that the information somehow was send.
If I send a mail from this address to my googlemail with a standard mail app, I can’t see this information. Then it shows my configured name and mail address.
But I also tried an other newsletter tool and I had the same problem.
So I will ask tomorrow the provider about the settings. Thank you for the info, I hope it will solve it.