Spam Gourmet. The main feature is that for each alias you set the maximum number of emails to be forwarded before dumping them to /dev/null.

Subscribe to as much shitty free services, mail lists and commercial ads as you can. If someone ever gets the domain, they’ll receive so much spam they won’t bother reading them.

Source: I bought such a domain myself, and I have no idea what the previous owner was up to… I received delivery reports from a beer company in Iceland, password reset requests from like 500 Instagram accounts, and many other emails like that.

However, the domain is totally “sane” and not blacklisted anywhere. I have no idea how that’s possible that my emails get through spam filters given it’s past ^^