If you have ordered and administer your domain via our domain administration portal domain.23m.com, you can easily edit your resource records there.
To do this, use the Domain-Quicksearch field to call up the domain for which you want to edit the records:
Then click on the right on Update DNS:
You can edit the existing records on the following page. Click on the "+" below the entries to add an additional resource record.
Finally, don't forget to click on the Submit button at the bottom to save your changes.