How to Block all email from a top level domain

[Ksech]

I've been researching why mine works (it doesn't do partial matches on mine) and I think it has something to do with the difference between using unhashed "pcre" instead of postmap "hash" lists. I found one person commenting that you shouldn't use regex with hash lists but with pcre it is ok.

I have so much to learn! Thank you for replying. I might give it a try anyway and just watch it real close to be sure.