I am considering the installation of Greylisting with Postfix. I want it only for one condition, to greylist mail originating from certain countries.
I use Postfix 3.1 with postscreen. I am already using milters for dkim and dmarc and a policy server for spf. So looking through the addons and some posts I came to 'milter-greylist'. milter-greylist postfix http://hcpnet.free.fr/milter-greylist It is a milter so I think it can be used in Postfix. And it has a very simple easy ability to greylist only for specific countries milter-greylist+GeoIP http://milter-greylist.wikidot.com/geoip But then I also read that that 'Policy delegation is now the preferred method for adding policies to Postfix.' (1) For such only-geoip greylisting is the milter-greylist a recommendation ? I do not want any complicated rules, only the "greylist this country" ones. (2) Is the postfix documentation saying there that we should use policy servers instead of milters? I think I am maybe not fully clear with the terminology.
