About postgrey greylisting server: By default in gentoo, it listens localhost:10030, not 10023 port: like guide says: greylist = check_policy_service inet:127.0.0.1:10023 it should say ...:10030 and it is a server, it needs to be started before use: /etc/init.d/postgrey start ja rc-update add postgrey default
Postgrey default listening port changed to 10030, so this should be updated in the guide.
I'll commit this one in a few minutes. I made a couple of other small changes to the guide, since there are stable versions of postgrey available for all supported architectures.
Fixed in CVS.