In this article, you will learn how to perform a manual domain connection for your newsletter mailing. You can find out how to change your sender domain in IONOS email marketing in the Help Center article Changing the Sender Address of an Email Campaign


  • You have a domain whose DNS entries you can manage.

Customising the DNS Entries of a Domain

If a domain cannot be connected automatically, change the DNS settings manually. Please note that the following instructions were created with IONOS as the provider. If you manage your DNS with another provider, please see their instructions for editing DNS records.

  • Log in to your IONOS account.
  • Click Menu > Domain & SSL in the title bar. An overview of your domains is displayed,
  • In the Actions column, click the gear icon and select DNS in the row of the domain you need to manage.
  • Click on the Add record button and select NS.
  • In the Hostname field, enter the subdomain you will use to send newsletters, such as The subdomain component, in this example "newsletter", can be anything you choose.
  • In the Points to field, enter the following value:
  • In the TTL field, keep the default value of 1 hour.
  • Save your entries. The DNS settings will open again.
  • Perform steps 4 through 8 of this guide a second time. However, for the Points to field, use the entry The other values remain the same.

Please Note

Due to the decentralized structure of the domain name system (DNS), it can take up to 48 hours before your entries can be used for sending newsletters.