after viewing http://www.five-ten-sg.com/blackhole.php?221.143.43.231 I would like to use the 127.0.0.2 section of blackholes.five-ten-sg.com in a Received: header rule in SpamAssassin 3.0.2.
what would be the syntax for a rule that does such a PTR lookup like $ host 231.43.143.221.blackholes.five-ten-sg.com 231.43.143.221.blackholes.five-ten-sg.com is an alias for korea.spam.blackholes.five-ten-sg.com. korea.spam.blackholes.five-ten-sg.com has address 127.0.0.2 regards, wolfgang
