why IPv6 isn't ready for prime time, SMTP edition

Tue Mar 25 23:35:57 UTC 2014

In article <3D7D0845-CB25-4C05-8FAB-F5728C8602DD at heliacal.net> you write:
>The OP doesn't have control over the reverse DNS on the AT&T 6rd.

Ah, OK, you're saying that their IPv6 isn't ready for prime time.

>One would hope that with IPv6 this would change, but the attitude of looking down on end subscribers has been around
>forever.

It has nothing to do with looking down on "subscribers" and everything
to do with practicality.  When 99,9% of mail sent directly from
consumer IP ranges is botnet spam, and I think that's a reasonable
estimate, we have better things to do than to spend a lot of our money
expensively filtering that spam for the benefit of the GWL who is too
cool to relay through a mail server with a real name.

R's,
John