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

[Darren Pilgrim]

On 11/3/2014 11:27 AM, Brian E Carpenter wrote:
> On 03/11/2014 22:38, Bjørn Mork wrote:
>> It just seems so pointless.  The dummy names will be longer than the
>> address and will contain the exact same information.
>
> Quite. It's idiotic. And if I was a paranoid mail operator, I would
> put in some heuristic code to identify such dummy names and treat
> them as if there was no PTR record, since they do nothing to actually
> validate the source in any real way.

Rulesets like fqrdns exist for exactly that purpose.