usefulthings.org.uk

swaks is fantastic PERL script: you can do things like

swaks -t jsmith@uk.company.com -s mailserver -q RCPT -f jsmith@uk.company.com

…and it logs the IO on screen.

There is a changelog for it here.

Rather than using the qmail-queue patch and qmail-scanner to get Spam Assassin working with qmail this page suggests replacing qmail-queue with a simple sh script.

Seems to work on our internal work server, but of course you would need to put qmail-scanner in to check for viri.

This is quite a nice web config generator for Spam Assassin.

Ben Trott from MoveableType has written a usefull how-to on installing the assassin on osX.