How to wish you hadn't forced ipv6 adoption (was "How to force

Fri Oct 2 15:36:08 UTC 2015

> Greetings,
> 
> Excuse my probable ignorance of such matters, but would it not then be
> preferred to create a whitelist of proven Email servers/ip's , and just
> drop the rest?  Granted, one would have to create a process to vet anyone
> creating a new email server, but would that not be easier then trying to
> create and maintain new blacklists?

That hasn't worked spectacularly well even under IPv4.  There's no
reason to think it'd magically work better under v6.

... JG
-- 
Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net
"We call it the 'one bite at the apple' rule. Give me one chance [and] then I
won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN)
With 24 million small businesses in the US alone, that's way too many apples.