I'm new to postscreen and it's what I was looking for. Thanks a lot for the answers!
пн, 8 февр. 2021 г. в 11:22, Dominic Raferd <domi...@timedicer.co.uk>: > On 08/02/2021 08:04, Eugene Podshivalov wrote: > > There are a bunch of spiders and spammers nowadays which are knocking > > the service every hour or so every day. Postfix has a really powerful > > access control system to protect itself but it becomes a bit hard to > > read the log file flooded by the connection attempts. I'm currently > > trying to filter those out by UFW but dynamic addresses make it quite > > inefficient. > > My 2p (I also use ufw but as a last-resort): > > Postscreen of course > > Fail2ban 0.10+ with its postfix (and recidive) jails > > If you run postfix's dnsblog you could remove it to reduce the number of > log entries > > If you allow incoming emails by IPv6 you might turn it off > >