Only Swisscom can answer that directly.
https://www.swisscom.ch/de/privatkunden/hilfe/internet/homepagetool.html
Installationen, Netzwerk, Internet, Computertechnik, OS Windows, Apple und Linux.
@sam1970 wrote:
This domain is displayed for me in the marketplace, but when I go to manage, I get an error message.
Is this domain still mine or why is it still stored in my system?
The Swisscom name servers are registered at the registrar according to Whois.
If this is your domain and you have no need for it, remove the name servers from the registrar and cancel.
Not your domain? The Swisscom Abuse Department may be involved in the case.
Glotzologist