From Fedora Project Wiki

Use this (or a variation) when replying to email, such as sent to, where the complaint is due to a Fedora-branded Apache test page.

"The Fedora Project does not have anything to do with the
website you are having problems with.  You are probably seeing the
Fedora server test page:

Directly contact the owner or the Internet service provider (ISP) of
the server you are having problems with.  This can be done with a
Whois lookup: 

Good luck."