On Wed, 2010-07-07 at 14:22 -0500, Matt wrote:
>
> # : ips.backscatterer.org
> defer
> dnslists = ips.backscatterer.org
> !condition = ${if eq{$interface_port}{587} }
> verify=recipient
> senders = :
> message = $sender_host_address is in the ips.backscatterer.org blacklist
That'll catch sender verification callouts too, so isn't something I'd
advise.
See
http://www.infradead.org/rpr.html (later known as 'BATV') for a more
viable solution, perhaps.
--
dwmw2