Re: Welcome to the new(ish) ASRG list

On 18/03/2013 09:16, Mikael Abrahamsson wrote:
> On Sat, 16 Mar 2013, Rob McEwen wrote:
>
>> (3) Then solve the HUGE HUGE HUGE HUGE and CONSTANTLY UNDER-RATED
>> problem of overabundance of mail-sending IPv6 addresses (a spammer's
>> dream as they never run out of new fresh IPs, and can send each e-mail
>> from a DIFFERENT IP address!) ...we could solve that problem... by
>
> What needs to happen (would solve multiple problems) is that ISPs need 
> to announce the "customer allocation size" in something that is 
> scalable, and then tools need to adapt to this and not treat IPv6 
> space as 2^128 addresses but instead treat it as "customer blocks" of 
> different sizes, and do anti-spam handling on these customer block 
> boundaries instead of per-IP.
>
While that will help, it will mean there are only something like 2^64 
'blocks'. This is still a big number...


Surely the answer is to whitelist good servers rather than blacklist bad 
servers

There are a lot fewer than 2^128 good mail servers in the world.

So, something similar to dnswl.org, possibly


-

Paul Smith Computer Services
Tel: 01484 855800
Vat No: GB 685 6987 53