SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

Lorenzo Colitti lorenzo at
Fri Aug 22 21:26:25 CEST 2014

On Fri, Aug 22, 2014 at 12:17 PM, Jared Mauch <jared at> wrote:

> > I'm not on the gmail team and don't have those numbers. Nick asked me for
> > an answer, and I gave him what information I have. My assumption was that
> > since they do receive a lot of email, they have statistics on this, but
> of
> > course you may not agree with that assumption and assume that they're
> just
> > doing this for whatever other arbitrary reason.
>         Lorenzo, (can you pass this question to the team at least?)

What specifically would you like me to pass on? "Dear gmail team, can you
please publicly present data on IPv4 spam vs IPv6 spam in order to justify
your documented policy?" ?
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