On Fri, 10 Jul 2020 18:01:30 +0200 Philipp Ewald wrote: > > Most smaller sites have no problem unless they use third party DNS > > resolvers which are blocked. if you're local resolver is forwarding > > to some ISP's resolver then you also get blocked. > > No. We are like a ISP... and got more than 50.000 accepted Mails a > day so this is totally not in free-use includes, but i think enabled > by default is... na
The default is right for most, defined in the link as "covering the small businesses, non-profits, personal users, etc. that make up the bulk of our installations." If you are managing an ISP level mail system the assumption is that you are paid to understand the basics of spam filtering.
