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

[Nick Hilliard]

On 22/08/2014 15:16, Lorenzo Colitti wrote:
> Are you following the "Additional guidelines for IPv6" section of
> https://support.google.com/mail/answer/81126 ?

Lorenzo,

it looks like Google is trying to enforce SPF / DKIM on ipv6 connections 
where there is no similar requirement for ipv4.  Is there a particular 
reason for this?  It's causing a lot of breakage.

Nick