[10GBps]

I run email servers and I get such a massive amount of spam on "vanity" TLD's that I just block them outright. I don't automatically block them all but any that start sending serious levels of spam get blocked. Which is most of them and that block covers the whole TLD. It's just too much work to try anything else.

Now this is just for incoming email. I still allow web browsing and links to these domains through various systems and outgoing mail to those domains works.

The incoming mail though, I just can't allow it. It's just pure spam at ridiculous levels.