I've just found a new and interesting spam source - legitimate bounce messages

[eculp at casasponti.net]

Luke Dean <LukeD at pobox.com> escribió:

>
>
> On Thu, 16 Oct 2008, Matthew Seaman wrote:
>
>> Until the wonderful day that the entire internet abides by these  
>> rules[*], use
>> of technologies like SPF and DKIM can discourage but not entirely  
>> prevent the
>> spammers from joe-jobbing you.
>
> I just started getting these bouncebacks en masse this week.
> My mail provider publishes SPF records.
> If the names and numbers in the bouceback messages are to be  
> believed, however, the spammers have defeated SPF by hijacking DNS.   
> The poor recipients never see my SPF records because they're looking  
> at the wrong IP address.

Thanks, Matthew.  I guess that is the root problem of spf, the  
spammers, that it is supposed to stop.  It looks a bit like our  
economy, a loosing battle.

It really make me feel impotent this morning.

Have a great day,

ed