** OpenSMTPD has a new filter API, this filter will be replaced by a new one **

OpenSMTPD greylist support

Still under active development

Debian ships with greylistd, a simple greylist management server written in Python. greylistd implements a simple protocol over a local socket that manages the greylisting of IP addresses, HELO hostnames and RCPT addresses. This filter only uses the sender's host's IP address.

How to use this

Once the packages are uploaded, you will be able to install it like this:

echo "deb http://repo.maurus.net/greylistd jessie main" > /etc/apt/sources.list.d/greylistd.list
apt-get update
apt-get install greylistd opensmtpd-filter-greylistd

In your OpenSMTPD configuration activate filter_greylistd:

filter greylistd greylistd "-s" "/var/run/greylistd/socket"

TODO: finish integration

Build

compile.sh does most of the heavy lifting as long as you execute it in the base folder and have autoconf1.15 and libtool installed.