policy-test

greylisting implementation for Postfix

Install

All systems
curl cmd.cat/policy-test.sh
Debian Debian
apt-get install postgrey
Ubuntu
apt-get install postgrey
Alpine
apk add postgrey
Arch Arch Linux
pacman -S postgrey
Fedora
dnf install postgrey
Windows (WSL2)
sudo apt-get update sudo apt-get install postgrey
Raspbian
apt-get install postgrey
Dockerfile
dockerfile.run/policy-test
Docker
docker run cmd.cat/policy-test policy-test powered by Commando

postgrey

greylisting implementation for Postfix

This package provides a policy server for Postfix to implement "greylisting". Greylisting is a spam filtering method that rejects email from external servers on the first try. Spammers don't usually retry sending their messages, whereas legitimate mail servers do. While Postgrey is designed for use with Postfix, it can also be used with Exim.