Re: DNSBL and IPv6

On Oct 24, 2012, at 7:48 PM, "John Levine" <[email protected]> wrote:

>>> Depends what your intentions are.  If you're trying to do listwashing, you
>>> may wall see DNSBL listings rather than bounces.  I like VERP just fine and
>>> my lists use it, but I do get back FBL reports that are munged to the point
>>> where I can't tell who complained.  But they rarely munge the IP. 
>> 
>> People trying to avoid listwashing will learn to munge the bottom bits of any 
>> IPv6 address.
> 
> Well, maybe.  Personally, I think the threat of listwashing is overstated.
> The really slimy senders have lists so dirty that no amount of washing will 
> clean them.
> 
> But anyway, I'm seeing a lot of assertions about how IPv6 mail will work,
> and precious little running core or simulations.  As always, anyone want
> to do some, you know, research?

It's mostly dependent on how IPv6 addresses for mailservers (legitimate and
otherwise) will be allocated, and how much IPv6 will be used for inter-domain
email delivery. Do we have any data, or researched speculation, about that
to work from?

Cheers,
  Steve