On Thu, 26 Sep 2019 at 11:24, Enrico Morelli <more...@cerm.unifi.it> wrote: > I've search in my Debian 10 packages but there isn't postscreen. > Is it in bundle with new postfix version? In Debian 10 I've postfix > 3.4.5
Yes it is a standard part of postfix - try 'man postscreen'
