Repeated Blacklisting / IP reputation

Peter Beckman beckman at
Thu Sep 10 15:02:27 UTC 2009

On Thu, 10 Sep 2009, Benjamin Billon wrote:

>>  Why don't we just blacklist everything and only whitelist those we know
>>  are good?
>> <snip>
>>> Note we all could start using IPv6 and avoid this problem altogether.
>> <snip>
> Yeah. When ISP will start receiving SMTP traffic in IPv6, they could start to 
> accept whitelisted senders only.
> "IPv6 emails == clean"
> Utopian thought?

  My statement about blacklisting everything was sarcastic.  Clearly
  blacklisting everything and whitelisting individual blocks is not a
  viable, reasonable nor cost-effective option.

  Clearly I also suck at conveying sarcasm via email. :-)

Peter Beckman                                                  Internet Guy
beckman at                       

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