"If you’ve ever owned a domain name, the chances are good that at some
point you’ve received a snail mail letter which appears to be a bill for
a domain or website-related services. In reality, these misleading
missives try to trick people into paying for useless services they never
ordered, don’t need, and probably will never receive. Here’s a look at
the most recent incarnation of this scam —
DomainNetworks — and some clues about who may be behind it."
https://krebsonsecurity.com/2023/07/whos-behind-the-domainnetworks-snail-mail-scam/