Lately I’ve noticed a surge in spam from a website called
wholesale-jewelry-shop.com. According to the IP whois. The company behind it seems to be a company called VPS21 and has reserved several IP networks. Since obviously firstname.lastname@example.org is not a valid abuse reporting email and the hosting company does not respond to abuse complaints, I’m going to catalog the IP networks I got spam from here to include in a Postfix blacklist for everyone interested.
I honestly don’t care if a couple of emails from this companies’ legit customers (if there are any) might not be delivered to my server and my customers. I doubt anyone has any business with a business promoting and allowing spam.