The Control Panel allows you to set up new connections to your instances by allow listing IP address ranges. By default, an Adobe Campaign Classic instance is not accessible from various IP addresses. Therefore, an IP address needs to be allow listed:
To access the Subdomain Management in Control Panel, go to:
Learn how add an IP range to Campaign Classic instances’ allow lists and how to remove them from the allow list using the control panel.
For more information on IP allow listing please see the detailed product documentation.