How do I remove a domain mapping?
This article explains how to remove a Domain Mapping setup via the the 123 Reg control panel.
Please note: this feature is not available on any web hosting plans purchased after July 2020
Scroll down to the Web Hosting section of the 123 Reg control panel and click the Manage web hosting link.
Click on the Domain Mapping link.
Click on the check box next to the relevant domain mapping that you wish to remove. Then click the Remove Selected button.