.xyz and .icu domain spam

It's impossible to know whether there's *any* legitimate use of these domains, because you can't see a list of all the companies that use them.

The current VPOP3 spam filter should block .icu domains, as they are known to have a low reputation and several other spam filters also have a blanket block on them at the moment. The spam filter doesn't currently block .xyz, but that may change. Bulk blocking like this has to be considered carefully in a published filter.

But, if you want to block them at your end, it's easy enough to do.

Go to settings -> Spamfilter -> white/black lists and add *.icu and *.xyz to the "Blacklist addresses" list

You can use SMTP Rules (Services -> SMTP -> Filtering -> Edit SMTP Rules) or Download Rules (Mail Collector -> POP3 General -> Edit Download Rules) depending on how the messages reach VPOP3.



Eg, you could set up an SMTP Rule to reject messages where the return path is *.xyz