At 05:51 30-10-2008, Luis Hernán Otegui wrote:
>Just to check, you know you should run a RBL check in Postfix BEFORE
>it accepts te message, do you? This reduces dramatically the number of
>messages your server has to scan. And improves the performance a lot.

You should not run RBL checks on outbound mail
where the customer is relaying through your mail server.